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采用多层结构形式，早出离心转子超细粉分级设备中高速转盘的强度、刚度条件及在正常工艺条件下的结构允许转速。与普通结构比较，多层结构的允许转速提高一倍多。
Using multi-layer structure, early out of the centrifugal rotor superfine powder grading equipment in high-speed turntable strength and stiffness conditions and under normal process conditions allowable speed. Compared with the normal structure, the allowable speed of multi-layer structure more than doubled.