便携式手持动力工具。手柄部位振动量的测量。第7部分：具有冲击，冲力和棘轮传动动作的扳手，螺锥和螺母拧紧器。
Hand - held portable power tools. measurement of vibrations at the handle. part 7: wrenches, screwdrivers and nut runners with impact, impulse or ratchet action.
风机的振动量测量是风机故障诊断的一个重要参量。
The vibrating signal is an important value in trouble diagnosis of fans.
风机的振动量测量是风机故障诊断的一个重要参量。
The vibrating signal is an important value in trouble diagnosis of fans.
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