The vibration characters of both types of rock drifters under noload and drifting operations are studied.

在空载和凿岩条件下，对这两类气动凿岩机的振动特性作了研究。

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The vibration characters of both types of rock drifters under noload and drifting operations are studied.

在空载和凿岩条件下，对这两类气动凿岩机的振动特性作了研究。

youdao