Navigation data logger instrument
virtual instrument instrument
control and navigation technology of aerocraft navigation
Instrument to ascertain instrument height
military fire-kcontrol insturment military optical instrument
optical instrument & gauge instrument designing
114 telephone navigation
2nd Generation of China Satellite Navigation Syste
a integrated navigation method in pseudo range and pseudo range rate
abnormal information navigation
accuracy of navigation system
acoustic navigation
二氧化氯
声响航法
音响导航
听音航行法
听音航海
声学导航
acoustic navigation system
acoustic navigation transponder
acoustic transponder navigation system
声脉冲转发器导航系统
声学应答器导航系统声脉冲转发器导航系统