An ultrasonic intellectual testing system is developed for testing internal flaw of railway vehicle axles.

针对铁路车辆轮轴内部的缺陷，研究了一种轮轴超声波智能探伤系统。

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The internal flaw has the same important effect on the distribution of the shear band, but little effect on the rock UCS.

岩石内部的单个缺陷对剪切破坏面的分布影响较大，而对岩石强度却影响较小。

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A practical and effective ultrasonic inspection method for detecting internal flaw of brake disc is put forward and the key procedure is to select a proper probe.

提出运用超声检测的方法检测制动盘内部缺陷是切实可行的，而选择合适探头是超声检测成功的关键。

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