The application of ultrasonic sound system of measuring distance is also presented in this paper .
给出了超声波语音测距系统在车辆避障中的实际应用。
But, again, measuring the speed and distance to these objects is difficult.
但是，测量这些物体的速度和距离又是很困难的。
The article also introduces a simple noise measuring method at near distance.
介绍了一种简便的近距离测定噪声的方法。
It also can be used in other long distance automation measuring system.
同时该设计方案还可应用于其它远程测报自动化系统中。
Experiment with distance measuring system.
测距系统实验研究。
Experiment with distance measuring system.
测距系统实验研究。
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