该系统实验结果表明不仅能适用于超细粉分级，而且能获得多个窄级别的分级产品。
The experimental results indicates that the system is not only suit for ultrafine classification, but also more than three products with narrow can be obtained.
大米分级精选机是我厂自行设计的白米分级产品。它利用整米和碎米长度不一致的原理，将整米和碎米分离。
The Rice Refined Sorret, researched and manufactured in factory, can separate the whole rice from the crushed rice according to different length.
由于传统螺旋分级机的分级效率较低，分级产品的粒度难以控制，从而直接影响球磨机的处理量和最终的选别指标。
Since conventional screw classifiers have a lower efficiency, it is difficult for them to control their product sizes, affecting directly ball mill's throughput capacity and final separation results.
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