echo sounder

汉语翻译

【电】 回声器

英语解释

名词 echo sounder:

a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return同义词：sonar, asdic

例句

A device used underwater to produce pulses of sound, as for an echo sounder.声脉冲发送器置于水下产生声脉冲的装置，如回音器中的装置