介绍氧化锆球磨机风选分级收集系统，特别是系统中离心式超细分级机的特点。

The system which is applied to grader the Zirconium dioxide superfines after ball milling is introduced, specially the features of the centrifugal grader.

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行星球磨机中磨球的运动规律主要由离心力决定。

The movement law of the grinding balls in planetary ball mill is mainly determined by centrifugal force.

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试验还得知，离心磨矿机的有用功率为输入功率的4 0 %左右，高于普通球磨机(30 %)。

The experiments also show that the useful power of the centrifugal mill is account for 40% of the input power, and it is higher than the ordinary ball mill (which account for 30%).

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