The key technology of immersion virtual maintenance and training system includes model establishment, collision detection, virtual human control, program control realization, and view drive control.

沉浸式虚拟维修系统的关键技术包括模型建立、碰撞检测、虚拟人控制、程序控制实现和视景驱动控制。

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The way of data transfer in DMA mode, control method of logical programmable device and design of driver program are discussed to solve the key point of sequential transmission.

给出DMA工作方式下数据传输的设计方法，可编程逻辑器件的控制逻辑和驱动程序设计，解决了数据传输连续性的关键问题。

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Application of a temperature control device in the drying process of grain was studied to present the principle and the method of the system and introduce the method to program the key software.

本文报告了一种粮食烘干过程中的温度控制装置的研究及应用。给出了系统组成原理和构成方法，介绍了关键软件的编程方法。

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And most of these commands you don't actually need but this little caret symbol means control, so every keyboard these days has a control key so you hold that and hit X for instance to exit the program.

这里大多数命令你们都用不着,这个小插入符意味着控制，每个键盘都有一个控制键,譬如，当你敲入X时，就退出这个程序。

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