As in the data processing, the output of depthsounder 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。
2
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.