Chalk augmented reality - It’s been estimated that augmented reality (AR) and virtual reality (VR) applications have the potential to deliver a £1.4 trillion boost to the global economy by 2030. Adoption of AR/VR has accelerated as businesses discover the cost and productivity benefits: 56% of businesses have implemented augmented reality (AR) or virtual reality (VR) in some …

 
Best AR Apps for Galaxy S22/S22+/S22 Ultra. 1. Civilisations AR. This is an app from BBC that is tied to its documentary series called ‘Civilisations.’. It will augment 30 different artifacts from various great civilizations across many epochs.. New york berlin flights

Art for After Hours: 4D Augmented Reality Chalk and Mural Art was live.Chalk Alive by Horizon Group USA, Augmented Reality Sidewalk Chalk Art, Watch A Dino, Racecar & Rocket Come Alive, Includes 6 Interactive Chalks, 3 Reusable Stencils : Amazon.in: Toys & GamesUsing augmented reality for industry 4.0 makes it possible to: Reduce waste, spoilage, and rework. Optimize employee onboarding. It may seem impossible that one solution can provide your organization with all of those benefits – but it is possible with Vuforia Chalk. This leading platform is the first practical augmented reality for industry ...Nov 8, 2022 · "Mainstream augmented reality is at the beginning of a strong positive inflexion point, and Vuforia Chalk is a great example of how AR can transition from enterprise-only to use in everyday life. We see Vuforia Chalk as a fundamentally disruptive form of remote communication that will be well received across multiple sectors and for multiple ... Jan 23, 2024 · Open ear audio can be beneficial to a host of different applications including virtual reality headsets, smart glasses, and sports and fitness designs. In this episode of Chalk Talk, Amelia Dalton and Ryan Boyle from Analog Devices explore the what, where, and how of open ear audio. They also investigate the solutions that Analog Devices… One platform to power all your immersive web content. From no-code and low-code creative tooling to developer SDKs, Zapworks has everything your team needs to create engaging 3D, Augmented, Virtual and Mixed Reality experiences for any device.Using augmented reality for industry 4.0 makes it possible to: Reduce waste, spoilage, and rework. Optimize employee onboarding. It may seem impossible that one solution can provide your organization with all of those benefits – but it is possible with Vuforia Chalk. This leading platform is the first practical augmented reality for industry ...Chalk Alive by Horizon Group USA, Augmented Reality Chalk Art, Watch Your Drawings Come Alive. Includes, 18 Interactive Chalks, 8 Reusable Stencils. : Amazon.com.au: Toys & GamesPower your people with Chalk's augmented reality remote assistance. Explore Vuforia Chalk. PAC INNOVATION RADAR Report: Vuforia ranked #1 AR platform. In 2023, PAC ranked Vuforia as the top augmented …"Mainstream augmented reality is at the beginning of a strong positive inflexion point, and Vuforia Chalk is a great example of how AR can transition from enterprise-only to use in everyday life. We see Vuforia Chalk as a fundamentally disruptive form of remote communication that will be well received across multiple sectors and for …This paper examines the potentials of augmented reality (AR) technology in supply chain management (SCM) and logistics. Specifically, we provide an overview of the technology’s various value propositions and its ability to support companies’ business processes. Although the emergence of Industry 4.0 has renewed the interest in AR, and …Physical health risks. While a marvel of modern technology, Augmented Reality comes with inherent physical health risks that users need to be aware of. One of the primary concerns is eye strain and discomfort. Prolonged exposure to AR content, especially through head-mounted displays, can lead to symptoms like dry eyes, irritation, and visual ...The Unity Editor is a popular and useful authoring platform for creating cutting-edge augmented reality experiences for handheld devices and digital eyewear. Visit https://unity.com to download and set up Unity. Add the Vuforia Engine Extension to your project, or start with our Core Samples in the Unity Asset Store. AR On Demand. Discover how augmented reality drives workforce efficiency by overlaying relevant digital information in the context of the physical world. Hear from PTC executives, industry experts, and technology leaders on how AR can help empower frontline workers to execute faster, learn more effectively, and make better decisions. Explore AR. Vuforia Chalk – Augmented Reality, simple and secure remote guidance and assistance – for businesses. PTC in cooperation with PDSVISION invites you to use Vuforia Chalk for free without any obligations. This is a joint effort that we believe will help. This provides a chance for you to support your colleagues, customers and your business ...This item: Chalk Alive by Horizon Group USA, Augmented Reality Chalk Art, Watch A Lion, Tiger & Dolphin Come Alive, Includes 6 Interactive Chalks, 3 Reusable Stencils $6.99 $ 6 . 99 Get it as soon as Tuesday, Apr 2May 4, 2021 · Buy Chalk Alive Augmented Reality Sidewalk Chalk Art & Creative Roots Unicorn Stepping Stone Bundle by Horizon Group USA, 2-in-1 Activity Kits, Create Drawings That Come Alive, Paint A Stepping Stone: Decorative Stones - Amazon.com FREE DELIVERY possible on eligible purchases Jan 9, 2021 · This item: Chalk Alive by Horizon Group USA, Augmented Reality Chalk Art, Watch A Lion, Tiger & Dolphin Come Alive, Includes 6 Interactive Chalks, 3 Reusable Stencils $6.99 $ 6 . 99 Get it as soon as Tuesday, Apr 2 May 4, 2021 · Buy Chalk Alive Augmented Reality Sidewalk Chalk Art & Creative Roots Unicorn Stepping Stone Bundle by Horizon Group USA, 2-in-1 Activity Kits, Create Drawings That Come Alive, Paint A Stepping Stone: Decorative Stones - Amazon.com FREE DELIVERY possible on eligible purchases Vuforia Chalk (Free) Whenever I imagine AR becoming part of our everyday future lives, I think of something like Vuforia Chalk. It’s a little like FaceTime in that it’s basically a video call ... In this video, we’ll see how Vuforia, Chalk, and ThingWorx enables technicians to learn from AR experiences rich with data and context. With AR, technicians can easily learn and work in tandem, reducing training and equipment downtime. 2:35. Working together, RealWear and PTC technology make field service inspections more effective and efficient. Bring your design ideas into the world of augmented reality with Adobe Aero. Easily create, view, and share immersive AR experiences with Adobe AR software. Augmented reality. It's everything you imagined. Adobe Aero is the most intuitive way to build, view, and share robust immersive storytelling experiences in mobile AR. Available on iOS and ... Industrial Augmented Reality (AR) connects users across digital and physical worlds. PTC’s Vuforia suite will not only allow you to change products, operations and services—it will transform your business. The Vuforia platform is the industry’s most advanced and widely adopted AR technology platform, consisting of Vuforia Studio, Vuforia ... Although Augmented Reality (AR) has been around for almost five decades, only recently we have witnessed AR systems and applications entering in our everyday life. Representative examples of this technological revolution are the smartphone games “Pokémon GO” and “Ingress” or the Google Translate real-time sign interpretation app. …Augmented reality is one of the most popular trends in app development today. This is because AR apps offer higher user engagement and interactive user experience. AR apps are getting popular in all major industries. ... Some examples of Vuforia use-cases are Vuforia View and Vuforia Chalk. Vuforia offers a free developer …Coneyl Jay/Getty Images. Augmented reality (AR) is an interactive 3D experience that combines a view of the real world with computer-generated elements. AR is different from VR in that VR is a ...Vuforia Chalk enables your organization’s experts to remotely assist frontline employees or customers using augmented reality. This powerful, easy-to-use augmented reality …Best AR Apps for Galaxy S22/S22+/S22 Ultra. 1. Civilisations AR. This is an app from BBC that is tied to its documentary series called ‘Civilisations.’. It will augment 30 different artifacts from various great civilizations across many epochs. Henkel—a German chemical and consumer goods company—is a prime example. When lockdowns and travel bans made remote collaboration a pressing business need, Henkel leveraged PTC’s Vuforia Chalk to quickly deploy an augmented-reality-powered remote assistance solution that connects experts with field technicians and other roles in real time. The listed devices below represent some of the most popular being used with Vuforia Engine. Other devices that are not listed are still likely to support Vuforia Engine, as well. Find additional information for specific device compatibility with Vuforia Engine features in the table below. The Recommended Devices have been tested and verified to work with …Open ear audio can be beneficial to a host of different applications including virtual reality headsets, smart glasses, and sports and fitness designs. In this episode of Chalk Talk, Amelia Dalton and Ryan Boyle from Analog Devices explore the what, where, and how of open ear audio. They also investigate the solutions that Analog Devices…Other important factors to consider when researching alternatives to Vuforia Engine include projects and apps. We have compiled a list of solutions that reviewers voted as the best overall alternatives and competitors to Vuforia Engine, including ARKit, Unity, ARCore, and Zapworks. Answer a few questions to help the Vuforia Engine community. Augmented reality ( AR) is an interactive experience that combines the real world and computer-generated content. The content can span multiple sensory modalities, including visual, auditory, haptic, somatosensory and olfactory. [1] AR can be defined as a system that incorporates three basic features: a combination of real and virtual worlds ... Other important factors to consider when researching alternatives to Vuforia Engine include projects and apps. We have compiled a list of solutions that reviewers voted as the best overall alternatives and competitors to Vuforia Engine, including ARKit, Unity, ARCore, and Zapworks. Answer a few questions to help the Vuforia Engine community.Augmented reality has been more widely used since it has allowed its application in different contexts due to the speed with which applications can be adapted and incorporated into daily life [26Art for After Hours: 4D Augmented Reality Chalk and Mural Art. 804 likes. ART for AFTER HOURS: Virtual Chalk and Mural Art using live augmented reality, animation design withIn the video below we’re playing with the app ThingWorx View by PTC. Watch this model of a motorcycle come to life with Augmented Reality (AR). We’ve used this technology for virtual prototyping. For some of our customers we are able to swap in and out CAD models to virtually prototype new designs and configurations. So, if you’re …Today, we‘re sharing a look back at our progress in augmented reality (AR) and virtual reality (VR) in 2022, from shipping cutting-edge technology to supporting developers and creators that build with it. We’re taking a deeper look at the technology behind some of Meta Quest Pro’s most innovative features: its mixed reality capabilities ...Revolutionize Manufacturing with Augmented Reality Solutions. Are you ready to empower your workers to perform better, avoid secure risks, access the training they require, remain compliant or service your adroitness remote-controlled? Industrial Augmented Reality (AR) can related enhanced your workforce productivity, effectiveness and safety ... Vuforia Chalk™ – enables technicians to get remote assistance from experts. Creo ® Design Share Solution – enables users to easily share Creo® 3D CAD content in augmented reality with partners and other stakeholders. Annotations Come to Life with Availability of Vuforia Chalk for Industrial Use Cases Howden Enhances Customer Experience With Vuforia and Microsoft HoloLens. Howden, a manufacturer of industrial products, leveraged their existing 3D machine models to create step-by-step Mixed Reality instructions with Vuforia Studio. By incorporating real-time and historic IoT data from PTC’s ThingWorx Industrial IoT platform and Microsoft ...Chalk Alive by Horizon Group USA, Augmented Reality Chalk Art, Watch Your Drawings Come Alive. Includes, 18 Interactive Chalks, 8 Reusable Stencils. : Amazon.com.au: Toys & GamesOver the past numerous years, the training structure is applying outdated strategies that keep schools from moving to competency-based models. Since most of the parts are instructor-oriented, the students are the detached party in the classroom which prompts less communication between students and the instructor. Augmented Reality …Vuforia Chalk . View on the App Store > The remote guidance experience in Vuforia Chalk combines live video, audio, and the ability for both the remote and local participant to annotate their live shared view. Onscreen annotations in Vuforia Chalk accurately stick to real-world objects, even as participants move. Product design and production Using augmented reality for industry 4.0 makes it possible to: Reduce waste, spoilage, and rework. Optimize employee onboarding. It may seem impossible that one solution can provide your organization with all of those benefits – but it is possible with Vuforia Chalk. This leading platform is the first practical augmented reality for industry ... ChalkLine4D is an augmented reality tool used to successfully execute design. The precision of your CAD / Revit drawings are laser projected at full-size on your … Vuforia Chalk memungkinkan kamu untuk berkolaborasi menggunakan teknologi Augmented Reality (AR). Dengan Vuforia Chalk, akan membantu para teknisi dan expert dalam memecahkan masalah dengan lebih cepat dan akurat, tanpa harus bertatap muka secara langsung sehingga lebih efektif, mengurangi waktu dan biaya perjalanan. Pelajari lebih lanjut Find helpful customer reviews and review ratings for Chalk Alive by Horizon Group USA, Augmented Reality Chalk Art, Watch Your Drawings Come Alive. Includes, 18 Interactive Chalks, 8 Reusable Stencils. at Amazon.com. Read honest and unbiased product reviews from our users. Vuforia Chalk [100] It allows students to anno tate live video feed s remotely. GeoGebra [35] ... Augmented Reality In Technology-Enhanced Learning: Systematic Re view 2011-2021 52 . AR ...The listed devices below represent some of the most popular being used with Vuforia Engine. Other devices that are not listed are still likely to support Vuforia Engine, as well. Find additional information for specific device compatibility with Vuforia Engine features in the table below. The Recommended Devices have been tested and verified to work with …Bring your design ideas into the world of augmented reality with Adobe Aero. Easily create, view, and share immersive AR experiences with Adobe AR software. Augmented reality. It's everything you imagined. Adobe Aero is the most intuitive way to build, view, and share robust immersive storytelling experiences in mobile AR. Available on iOS and ...NEEDHAM, Mass.– October 2, 2017 – PTC (NASDAQ: PTC) today announced a brand-new way to communicate and help others with the new Vuforia® Chalk™ augmented reality …Although Augmented Reality (AR) has been around for almost five decades, only recently we have witnessed AR systems and applications entering in our everyday life. Representative examples of this technological revolution are the smartphone games “Pokémon GO” and “Ingress” or the Google Translate real-time sign interpretation app. …May 31, 2017 · Now, PTC's Vuforia augmented-reality software means you can at least show up virtually. The company on Wednesday demonstrated a new Vuforia-based app called Project Chalk that lets you interact ... Vuforia Chalk is an Augmented Reality app that enables immediate collaboration between experts and field technicians. It solves complex problems, maximizes equipment uptime, facilitates on-the-job training and enhances technicians’ expertise when needed. Increase the effectiveness and efficiency of your employees – anytime, anywhere.Oct 5, 2017 · Great for providing remote tech support, Chalk is a clever augmented-reality video calling app that lets you draw right on the other caller’s field of view.V... ChalkLine4D is an augmented reality tool used to successfully execute design. The precision of your CAD / Revit drawings are laser projected at full-size on your …I acknowledge that my personal details will be processed in accordance with PTC's privacy policy and that they may be shared with PTC Inc.'s subsidiaries and members of the PTC Partner Network for the promotion of PTC's products and associated services. Learn how to use Chalk for Desktop and RealWear HMT-1 and HMT-1Z1.คุณสมบัติเด่นของ Vuforia Chalk ได้แก่. เทคโนโลยี AR ทำหน้าที่เป็นผู้ช่วยเพื่อให้การสื่อสารจากระยะไกลมีความถูกต้องและแม่นยำมาก ...The augmented reality-powered remote assistance tool enables problem-solving guidance, support and expertise to factory operations and service teams. Vuforia Chalk combines …Great for providing remote tech support, Chalk is a clever augmented-reality video calling app that lets you draw right on the other caller’s field of view.V...Vuforia Chalk enables your organization’s experts to remotely assist frontline employees or customers using augmented reality. This powerful, easy-to-use augmented reality … Vuforia Chalk™ – enables technicians to get remote assistance from experts. Creo ® Design Share Solution – enables users to easily share Creo® 3D CAD content in augmented reality with partners and other stakeholders. Annotations Come to Life with Availability of Vuforia Chalk for Industrial Use Cases Augmented Reality in Business | Spring 2020 2 Empower employees and customers with the world’s largest platform for augmented reality (AR). ... The remote guidance experience in Vuforia Chalk combines live video, audio, and the ability for both the remote and local participant to annotate their live shared view.2.1 Augmented Reality More than two decades ago, Milgram and Kishino laid the conceptual foundation for AR and virtual reality (VR). On the virtuality spectrum, real and virtual worlds are at opposite extremes [2]. At one end of the spectrum are environments constructed completely of real objects. On the other hand, some environments are ... Industrial Augmented Reality (AR) connects users across digital and physical worlds. PTC’s Vuforia suite will not only allow you to change products, operations and services—it will transform your business. The Vuforia platform is the industry’s most advanced and widely adopted AR technology platform, consisting of Vuforia Studio, Vuforia ... • The chalk-and-talk teaching method used by ... S. N., & Fauzi, A. H. (2020). Mobile augmented reality for biology learning: Review and design recommendations. Journal of Critical Reviews ...Vuforia Chalk is a remote assistance product that leverages augmented reality to enable offsite and on-site employees for collaborative operation, maintenance, and repair …Augmented Reality (AR) is an interactive technology that reshapes the classroom learning environments by providing a means to interact with the course and the instructor dynamically. ... MOOC courses, and virtual reality) and traditional schooling approaches (chalk and talk and old-style books). Additionally, this work presents the …Power your people with Chalk's augmented reality remote assistance. Explore Vuforia Chalk. PAC INNOVATION RADAR Report: Vuforia ranked #1 AR platform. In 2023, PAC ranked Vuforia as the top augmented …Apr 14, 2020 · Vuforia Chalk – Augmented Reality, simple and secure remote guidance and assistance – for businesses. PTC in cooperation with PDSVISION invites you to use Vuforia Chalk for free without any obligations. This is a joint effort that we believe will help. This provides a chance for you to support your colleagues, customers and your business ... Chalk Alive by Horizon Group USA, Augmented Reality Chalk Art, Watch Your Drawings Come Alive. Includes, 18 Interactive Chalks, 8 Reusable Stencils. : Amazon.com.au: Toys & GamesUsing augmented reality for industry 4.0 makes it possible to: Reduce waste, spoilage, and rework. Optimize employee onboarding. It may seem impossible that one solution can provide your organization with all of those benefits – but it is possible with Vuforia Chalk. This leading platform is the first practical augmented reality for industry ...Oct 5, 2017 · Great for providing remote tech support, Chalk is a clever augmented-reality video calling app that lets you draw right on the other caller’s field of view.V... Great for providing remote tech support, Chalk is a clever augmented-reality video calling app that lets you draw right on the other caller’s field of view.V...It’s been estimated that augmented reality (AR) and virtual reality (VR) applications have the potential to deliver a £1.4 trillion boost to the global economy by 2030. Adoption of AR/VR has accelerated as businesses discover the cost and productivity benefits: 56% of businesses have implemented augmented reality (AR) or virtual reality (VR) in some …BOSTON -- (BUSINESS WIRE)--Jun. 3, 2020-- As part of its strategic alliance with PTC (NASDAQ: PTC), Rockwell Automation, Inc. (NYSE: ROK) has joined PTC in …Berikut, adalah 15 aplikasi AR terbaik yang tidak boleh sampai Anda lewatkan. 1. Just a Line. Just a Line membuat gambarmu menjadi hidup berkat teknologi Augmented Reality yang dimilikinya. Karena ini adalah aplikasi Google, sehingga kompatibel dengan sejumlah perangkat Android. Namun, aplikasi gratis ini juga release …Best AR Apps for Galaxy S22/S22+/S22 Ultra. 1. Civilisations AR. This is an app from BBC that is tied to its documentary series called ‘Civilisations.’. It will augment 30 different artifacts from various great civilizations across many epochs.Augmented Reality in Education provides an emulated environment. It's like taking a virtual field trip to train & prepare for the real deal. ... Gone are the days of boring lectures and chalk-dusted blackboards. With Augmented Reality in Education, students can learn in a whole new dimension. It’s like taking a virtual field trip without …Best AR Apps for Galaxy S22/S22+/S22 Ultra. 1. Civilisations AR. This is an app from BBC that is tied to its documentary series called ‘Civilisations.’. It will augment 30 different artifacts from various great civilizations across many epochs.The future is here – create your own augmented reality experiences Forget paying an arm and a leg for custom-built AR. Roll up your sleeves and do it yourself, our easy step-by-step tool will help you bring your visuals to life.BOSTON -- (BUSINESS WIRE)--Jun. 3, 2020-- As part of its strategic alliance with PTC (NASDAQ: PTC), Rockwell Automation, Inc. (NYSE: ROK) has joined PTC in …Augmented reality is one of the most popular trends in app development today. This is because AR apps offer higher user engagement and interactive user experience. AR apps are getting popular in all major industries. ... Some examples of Vuforia use-cases are Vuforia View and Vuforia Chalk. Vuforia offers a free developer …355. 95K views 5 years ago Vuforia Chalk. Vuforia Chalk, a simple, powerful remote guidance and collaboration app designed for technicians and experts to more effectively …The 5 best augmented reality games. See what sets these 5 AR titles apart from the rest, and why you should play them right now. ... ‘TEAM VALOR’, (one of the three ‘teams’ users could join in-game), was etched into the asphalt with chalk. The impact that augmented reality had upon our reality, I now knew, was in full swing.augmented reality, in computer programming, a process of combining or “augmenting” video or photographic displays by overlaying the images with useful computer-generated data. The earliest applications of augmented reality were almost certainly the “ heads-up-displays” (HUDs) used in military airplanes and tanks, in which …

Mar 15, 2024 · augmented reality, in computer programming, a process of combining or “augmenting” video or photographic displays by overlaying the images with useful computer-generated data. The earliest applications of augmented reality were almost certainly the “ heads-up-displays” (HUDs) used in military airplanes and tanks, in which instrument ... . Locate phone number free

chalk augmented reality

Delivering learning contents using the chalk and talk method has been traditionally applied in the classroom setting. ... S. N., & Fauzi, A. H. (2020). Mobile augmented reality for biology ...The listed devices below represent some of the most popular being used with Vuforia Engine. Other devices that are not listed are still likely to support Vuforia Engine, as well. Find additional information for specific device compatibility with Vuforia Engine features in the table below. The Recommended Devices have been tested and verified to work with …Chalk for RealWear helps alleviate these issues by digitizing remote support through augmented reality, while keeping your employees hands free to work on the task at …The free Basic plan lets you create Vuforia Engine license keys that unlock the use of several of the Vuforia features and services. License keys created from the Basic plan support unlimited application development and publishing without a watermark with the following Vuforia features: Targets. Image Targets. Multi Targets.Augmented reality (AR) is a live direct or indirect view of a physical, real-world environment whose elements are augmented (or supplemented) by computer-generated sensory input such as sound, video, graphics or GPS data. It is related to a more general concept called mediated reality, in which a view of reality is modified (possibly even …Vuforia Chalk is an Augmented Reality app that enables immediate collaboration between experts and field technicians. It solves complex problems, maximizes equipment uptime, facilitates on-the-job training and enhances technicians’ …The Project Chalk technology could be a very important applications in moving augmented reality into mainstream use, said Jay Wright, president of PTC’s Vuforia division, in an interview with ...First get a small cardboard and 4 8mm stainless steel rods of appropriate length. We took a small cardboard of 60*50 cms and rods were 45cms each. I got them cut straight from the hardware store near my house so that I don't spend time cutting them myself. Now we have to mount the x axis rods on the cardboard base.Chalktalk is now open source - https://frl.nyu.edu/chalktalk-is-now-open-source/Vuforia Chalk is an Augmented Reality app that enables immediate collaboration between experts and field technicians. It solves complex problems, maximizes equipment uptime, facilitates on-the-job training and enhances technicians’ …An Augmented Reality Anatomy mobile application is proposed (ARA for short) that enables the visualization of human anatomy without resorting to the marker tracking method and, with ARA, students can learn about human anatomy and organs using augmented reality technology.Augmented reality (AR) is a technology that digitally replicates real-world elements like sound and video. Visual and auditory sensory experiences are often overlaid in the environment to enhance the user’s perception of their real-world settings. AR doesn’t create an entire world in the digital space as virtual reality (VR) does.First get a small cardboard and 4 8mm stainless steel rods of appropriate length. We took a small cardboard of 60*50 cms and rods were 45cms each. I got them cut straight from the hardware store near my house so that I don't spend time cutting them myself. Now we have to mount the x axis rods on the cardboard base.Jun 8, 2017 - Internet of Things and augmented reality technology provider PTC announced that it is working on an application that lets people make ink-like virtual marks on AR images they can view using AR goggles. The Project Chalk technology could be a very important applications in moving augmented reality in…Jul 27, 2022 · Designed in partnership with Australia-based augmented reality app Swigr, the augmented reality label for Clown Shoes Space Cake Double IPA offers five different settings to toggle through – the first being a lifelike animation of the beloved characters featured on the label. Users can also get the latest updates on special events and ... คุณสมบัติเด่นของ Vuforia Chalk ได้แก่. เทคโนโลยี AR ทำหน้าที่เป็นผู้ช่วยเพื่อให้การสื่อสารจากระยะไกลมีความถูกต้องและแม่นยำมาก ....

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