This paper based the "Compass I" time-service receiver project of some navigationdepartment.
本论文以某导航研发部门的“北斗一号”授时型接收机项目为基础。
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Methods 243 seafarers and 89 college students in navigationdepartment were selected to undergo speed estimation under 4 experimental conditions with EP509 speed perception testing instrument.
In urban traffic management department to establish perfect intelligent traffic navigation information system is to improve the traffic situation at present an effective method.