泵输出的周期性脉动流体的压力脉动，是引起流体谐振、激励管路振动和噪声的主要原因。
The pressure pulsation induced by the pumped periodic pulsation fluid is the main factor of causing fluid resonance and stimulating pipelines vibrations and noise.
双立环永磁高梯度磁选机是一种利用永磁磁力、脉动流体力和重力综合力场选别的新型设备。
Double vertical ring high gradient permanent magnetic separator is a new kind of separation equipment which utilizes the combined force field of permanent magnetic force.
流体传输管道内的压力脉动反映了流体动态流动的基本特性。
The pressure surge in fluid transmission pipeline is one of the basic characteristics of fluid dynamic flow.
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