The experimental results indicated that particle sizes had an effect on separation efficiency of cyclone tube, and also made a difference to grade efficiency.

实验结果表明：入口颗粒的粒度分布不但对旋风管的分离总效率有影响，而且对粒级效率也有较大影响；

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The effect of the inlet solid loading on the separation performance, especially on the grade efficiency, of the PV type cyclone separator is experimentally studied.

用试验方法研究了入口含尘浓度对PV型旋风分离器性能的影响规律。

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Employing a tightknit band of road veterans, including three friends he has known since grade school, Mr. Chesney's touring staff works with a military efficiency that comes from wrapping a stadium tour every August and putting the next one on sale by December.

WSJ: Kenny Chesney: King of the Road