echo depth sounder 回声测深仪 ; 回音测深仪
laser depth sounder 激光测深仪
electric depth sounder 电气测深仪
marine depth sounder 海洋回声测深仪
electromagnetic depth sounder 电磁测深仪
depth-sounder 测深规
depth finder depth sounder 测深计
submarine secure depth sounder 潜艇安全深度探测器
Depth sounder trunk 测深仪舱
As in the data processing, the output of depth sounder is not stable, causing a high probability of error.
在数据处理方面，测深仪输出的测深数据并不稳定，错误数据出现的概率较大。
Echo Sounder is a kind of acoustic measuring depth equipment, which can measure depth with the time between transmitted wave and echo on condition in which the speed of ultrasonic is fixed.
回声测深仪是用来测量水深的一种声学测量设备，其以水中超声波的传播速度为确定条件，利用发射波与反射回波时间差来测量水深。
When passing One Fathom Bank, check the depth and variable sand waves below the sea level all the time by echo sounder.
通过一托浅滩时，要一直测深校时水深及海面下多变的沙纹。
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