sounding apparatus meaning in Chinese

测深器
测深仪

So was born the echo - sounding apparatus now in general use in ships
这就是目前在船上普遍使用的回声设备的原理。
So was born the echo - sounding apparatus , now in general use in ships
目前船舶上普遍应用的回声探测仪就是这样产生的。
So was born the echo - sounding apparatus , now in general use in ships
这样就产生了目前各种船舶上普遍应用的回声探测仪。
Underwater topographic survey with tide - free mode made with the digital deep sounding apparatus and the gpsrtk
相结合进行无验潮模式水下地形测量