Tracing a circle on your wrist tells the device to project a digital clock on your arm - the world's lightest wristwatch, a fan joked.
它在你的腕关节处绘制一个圆圈，并且要求装置在你的胳膊上投射出一个数字钟——开玩笑的说，这是全世界最轻的手表了！
An optical device that projects a virtual image of an object onto a plane surface, especially for tracing.
一种光学装置，可将物体虚像投影到一平面之上，多用于跟踪。
This paper briefs on the selection of alternatives operation principle and structuralconfiguration of the latest"laser servo tracing of gauge measuring device".
本文介绍了最新研制的“激光伺服跟踪轨距测量装置”的方案选择、工作原理、结构组成。
The dedicated device of the invention is formed by connecting a differential module, a state judgement and setting module, a resetting module and a resetting keeping and tracing module;
所述专用装置由微分模块、状态判断及置位模块、复位模块和复位保持及跟踪模块连接而成；
The dedicated device of the invention is formed by connecting a differential module, a state judgement and setting module, a resetting module and a resetting keeping and tracing module;
所述专用装置由微分模块、状态判断及置位模块、复位模块和复位保持及跟踪模块连接而成；
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