echo sounder

音標(biāo)發(fā)音

Use echo sounder frequently when passing shallow water.
通過(guò)淺水域時(shí)，要常用回聲儀測(cè)深。
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The echo sounder is now gradually out of use in navigation, because it has many errors.
回聲測(cè)深儀在導(dǎo)航儀器中的地位在下降，其原因是它存在著較多的誤差。
A multi-channel data acquirement and process system was developed to meet the need of the portable echo sounder in the dissertation.
本論文針對(duì)某便攜式測(cè)深儀的需要，設(shè)計(jì)開發(fā)了一種多通道的數(shù)據(jù)采集和處理系統(tǒng)。

a piece of equipment, especially on a ship, that uses sound waves to discover water depth or the position of an object in the water

a navigation and position-finding device that determines depth by measuring the time taken for a pulse of high-frequency sound to reach the sea bed or a submerged object and for the echo to return