北斗二代卫星导航系统
Beidou 2nd generation satellite navigation system
北斗二卫星导航
BD2 navigation satellite system
北斗双星
Beidou double-stars
beidou satellite navigation
Beidou double-star
北斗双星导航定位系统
Beidou RDSS
Beidou star’s navigation and orientation system
北斗双星定位系统
beidou double satellite system
Beidou positioning system
Double star system
BD-1 dual-satellite position system
北斗卫星导航定位系统
KeywordBeidou satellite navigation guiding and positioning system
Compass satellite navigation system
北斗卫星导航系统
Compass
Beidou satellite navigation system
Beidou navigation satellite system
Beidou navigation system
北斗卫星导航应用
Compass satellite navigation application
北斗卫星定位系统
the bei-dou satellite navigation system
Satellite location system of BEIDOU
Beidou satellite navigation and position system
北北东向负航磁异常带
N-N-E strike strip of negative anomaly
北北西
body fixing apparatus
NNW
Blackfaced Highland sheep
north northwest {= NNW