导航地理框架数据
navigable geographic framework data
navigation geographic framework data
导航地理数据
navigable geographic data
navigable geographical data
导航地图计算机
NMC Navigation Map Computer
导航地图数据模型
navigable digital map data model
地地导弹
Surface to surface missile
Ground-to-ground Missile
Surface-to-Surface Missile
ground to ground missile
ground to groung missile
卫星导航地面站
satellite navigation earth station
远地导航
navigating for HEO satellites
电罗经天文导航系统
gyro erectional navigation