因此，和以往的泵相比，由流量脉动所引起的噪声将会大大的降低。
Therefore , Comparing with traditional pump, the noises caused by the flow fluctuation will reduce greatly.
结果表明，随着油液体积弹性模量的下降，泵的流量脉动及流体噪声均增大。
It was shown by calculation results that the flow ripple and fluid noise of hydraulic pump increased seriously when the bulk modulus descended.
螺杆泵特点是：流量平稳，压力脉动小，能够自吸，噪声低，效率高，使用寿命长，工作可靠。
Screw pump features are: smooth flow, small pressure fluctuation, imbibition, low noise, high efficiency, long service life and reliable operation.
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