radar ,sonar , navigation中文什么意思

雷达，声波导航

• radar:    n. 〔美国〕【无线电】 〔radi ...
• sonar:    n. 声纳，声波导航和测距系统，音响 ...
• navigation:    n. 1.航行；导航；领航；航海[航 ...

例句与用法

1. The perfect signal theory and its design have widely application and play an important role in optimizing design in the system of modern communication , radar , sonar , navigation , space ranging and controlling
   最佳信号理论及其设计在现代通信、雷达、声纳、制导、空间测控以及电子对抗等系统的优化设计中，有着广泛的应用并扮演着重要的角色。
2. The perfect discrete single and its design method play an important part in the optimizing design in the area of modernistic communication , radar , sonar , navigation , space ranging and controlling and electronically antagonism systems
   最佳离散信号及其设计在现代通信、雷达、声纳、制导、空间测控、以及电子对抗等系统中，扮演着越来越重要的角色。