useful thermal power

The experimental research of the useful power of centrifugal mill;

离心磨矿机有用功率的试验研究

The driving and useful power of the mills are analyzed.

分析了球磨机的驱动功率、有用功率，建立了数学模型和计算方法。

Movement of damp mill medium is discussed and active power equation is derived under throwing off condition.

通过对润磨机介质运动状态的分析,推导出润磨机抛落状态下的有用功率方程。