The aircraft engines, autopilot, and navigation system are absolutely reliable . 飞机发动机，自动驾驶仪和导航系统绝对可靠。
Should the gyroscopes break down, the celestial system would take over . 如果陀螺仪发生故障，天体导航系统就会接替它继续进行工作。
The intricate controls and the guidance system have little to do with the force needed for getting a rocket off the ground . 那些复杂的控制装置和导航系统与使火箭离开地面所需要的力关系不大。
Recent activity in the field of guided missile development has underlined the importance of self-contained automatic navigation system . 在导弹发展领域中，最近的活动强调自足式自动导航系统的重要性。
Fundamentally an inertial navigation system is a dead-reckoning system with a very significant characteristic which differentiates it from more conventional dead-reckoning equipment . 原则上惯性导航系统是一种航行推算系统，与一般的航行推算装置不同，它具有极明显的特点。
Atran automatic terrain recognition and navigation system 自动地图匹配导航系统
Satellite - doppler sonar integrated navigation system 卫星-多普勒声纳组合导航系统
' hydraulic systems : green . guidance systems : green 液压系统正常，导航系统正常
Application of dgps technique to vehicle navigation system 在车辆导航系统中的应用
Micro - vehicle navigation system based on bluetooth 基于蓝牙技术的微型车辆导航系统
