In such cases, this paper designs a multi-function automobile data recorder which can realize the vehicles positioning and navigating.
针对这一热点问题，本文设计开发了一套能实现汽车行驶记录和定位导航功能的多功能汽车行驶记录仪。
The basic principle, designing idea and the function diagrams of the microwave intelligent positioning system for electric train are presented in this paper.
本文介绍电力列车微波智能定位系统的基本工作原理、设计思想及方框图。
The composition, function and application situation of four equipment positioning interlocking to prevent coal mixing in coal blending system is described in this paper.
介绍了配煤四车定位连锁防混煤系统的组成、功能及应用情况。
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