声学导航定位系统 用水声方法根据事先布置好的水声信标进行导航由装在船上的换能器
The acoustic navigation and positioning system uses underwater acoustic methods to navigate according to the pre-arranged underwater acoustic beacons by the transducers installed on the ship
以上为机器翻译结果，长、整句建议使用 人工翻译 。