ultrasonic wave distance measurement
ultrasonic wave distance measurement
超声波测距
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Based on the theory of Zero-wave plane and the theory of Ultrasonic distance-measurement, introduces the ways how to measure the ship heaving signal according to the rule of 3-point forming a plane.
基于零波面理论，利用超声测距原理，介绍了3点定面测量船舶升沉位移的方法，设计了一种新型深海采矿船升沉信号采集系统。
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