However, when the tape transfer machine is for a long distance, such as tape transfer machine of Shanxi 81 is 18 kilometers, finding fault location is more difficult.
但是，当胶带输送机距离很长时(如：山西八一矿的胶带输送机长度为18公里)，查找故障位置比较困难。
Contrasting the waves reflected from the fault line and the normal one, and subtracting this two waveforms, then the fault distance is determined by finding the first distortion point.
比较故障线路和正常线路波形，使两波形相减，利用波形差第一个畸变点来确定故障距离。
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