navigational system
短语词组
- Navigational telegraphy system 航行警告电传系统
- navigational drilling system 导向钻井系统
- navigational lighting system 航行照明系统
- navigational satellite system [航][水运]导航卫星系统
- airborne navigational system [航]机载导航系统
- marine navigational system 舰船导航系统
- decca navigational system 德卡航行系统
- ground -based navigational system 陆基导航系统
- world -wide navigational system 环球航行系统 返回 navigational system