电子地图是车载定位定向系统中的重要组成部分。
Electron map is an important part in vehicle position and azimuth determines system.
定位定向技术是深海作业系统的主要关键技术之一。
Position and azimuth determining technology is one of the main technologies for deep ocean work.
分析了矿山水下轮式采煤车的定位定向导航的可实现问题。
The problems of under water navigation by mine roller tram are discussed.
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