本文介绍了一种基于单片机的多功能智能钟表的设计，详细介绍了硬件和软件的设计。
This article provides the design of multi-function intelligent horologe based on microcontroller, introducing the design of hardware and software in detail.
介绍了一种基于自然特征点的增强现实注册方法。
A method of registration of augmented reality based on natural characteristics is introduced.
介绍了一种基于半闭环控制的三坐标测量机的测量原理。
Measurement principle of three coordinate measuring machine based on half-closed loop control is introduced.
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