In this paper, the method that distance-measurement with ultrasonic is applied to height-measurement of coupler and range finder is presented.
介绍了超声波测距在车钩高度测量中的实现方法，研制出了测距仪。
In this paper, the method that distance-measurement with ultrasonic is applied to height-measurement of coupler and range finder is presented.
介绍了超声波测距在车钩高度测量中的实现方法，研制出了测距仪。
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