The planetary mill can be used for the ultrafine comminution, when the mechanism size of the mill is determined, the escaping position of the critical speed of the grinding ball will not be changed.
行星式球磨机可以用于超细磨矿。磨机的结构尺寸一旦确定，磨球脱离筒壁的临界转速脱离点位置则不会改变。
In this paper, the critical speed of the rotor system on new model high speed vertical im-pact mill is analysed with Transfer Matrix Method and the working speed of the rotor system is designed.
利用传递矩阵方法，对立式高速冲击粉碎机转子系统进行了临界转速分析；并对其工作转速进行了设计。
The rotational speed of the main roll of a profile ring mill is critical for insuring the success of its rolling process.
合理的主辊转速是保证异形环件顺利轧制的重要因素。
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