驻车定位系统根据回波发声器原理工作。
The Parktronic system operates on the echo-sounder principle.
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。
The composition, function and application situation of four equipment positioning interlocking to prevent coal mixing in coal blending system is described in this paper.
重点研究了GPS浮动车定位技术、交通信息采集与处理技术。
The paper focused on the GPS floating car location technology, collecting and processing technology for traffic information.
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