It is very valuable that localize the micro-crack location in rock by AE location method to investigate the process of rock failure and predict the final failure position.
用声发射(AE)定位技术确定岩石内部微破裂的发生位置，研究岩石的破坏过程，对预测岩石最终的破坏位置具有重要的实用价值。
Through practical eddy current testing, it shows that eddy current method can fine failure position quickly in repairing, and can improve efficiency and provide safeguard.
通过采用涡流法进行实际检测证实：在压缩机中间冷却器检修中采用此法可快速找到问题部位，为检修提高了效率，也为设备安全运行提供保障。
Failure position of valve shall be open.
故障时阀门位置为打开。
Failure position of valve shall be closed.
故障时阀门位置为关闭。
Failure position of valve shall be closed.
故障时阀门位置为关闭。
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