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- Geometry dilution of position(GDOP) is very important in the navigation precision of territorial radio navigation system. 区域无线电导航系统中;几何精度因子(GDOP)对系统的定位精度有着非常重要的影响.
- Develop the reality of radio navigation system. There could be navigation of NDB or VOR, if existed in the history. 增强无线电导航系统的仿真度，可进行NDB或VOR导航，如果历史上有的话。
- The ship radioed a call for help. 那艘船用无线电发出求救信号。
- The ship radioed a message to the shore. 那艘船向岸上发出电报。
- Scheme is proposed of using a computer on sline and digital fil-tering technique to perform digital filtering and lane identification of the phase signals of a port radio navigation system . 本文提出了采用单片机和数字滤波技术对一种港口双曲线无线电导航系统的相位信号进行滤波处理和巷识别的方案.
- The design of car GPS Navigation is based partly on similar ground-based radio navigation systems, such as LORAN and the Decca Navigator developed in the early 1940s. 一般由外线与分机构成。
- The ship radioed for help. 这艘船用无线电求救。
- maritime radio navigation service 海上无线电导航业务
- Maritime Radio Navigation Land Station 航海无线电导航陆地电台(电信标志)
- Maritime radio navigation mobile station 海上无线电导航移动电台
- passenger ship radio telegraph band 客轮所用无线电频带
- Coverage area of radio navigation system 无线电导航系统覆盖区
- Aeronautical radio navigation satellite service 卫星航空无线电导航业务
- We made contact with the ship by radio. 我们通过无线电同那只船保持联系。
- The lifeboat went out to a ship in distress. 救生船去救一艘遇险的船只。
- Radio Navigation Radar and Remote Control Aid 无线电导航雷达及遥控设备
- The ship's radio sent out signals for help. 轮船上的无线电发出求助信号。
- Radio navigation equipment system parameter 无线电导航系统参数
- world-wide radio navigation warning system 世界无线电航行警告系统
- The ship steamed into the harbor. 船驶入了港湾。
