研究裂纹宽度与磁记忆信号关系。
The relation of the Magnetism Memory signal and crack width is studied;
磁记忆信号非常微弱，磁敏传感器的选择十分重要。
Because magnetic memory signal is faint, selection of magnetic sensor is very important.
磁记忆信号非常微弱，磁敏传感器的选择十分重要。
Because magnetic memory signal is faint, selection of magnetic sensor is very important.
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