The basic condition that the ball f

The basic condition that the ball for comminution of a particle of
raw material must satisfy is that stress occuring in it on impact should
exceed the tensile strength of mineral raw material particle. That is why the
maximal ball diameter in the mill is determined depending on raw material
size distribution. After establishment of maximal ball diameter it is
necessary to form the charge of grinding media of different diameters. Size
of the charge must be optimal for grinding the particular raw material.

結果 (中文) 1:

基本条件是粉碎的颗粒的球原材料必须满足是应力发生在它影响应超过抗拉强度的矿物原料颗粒。这就是为什么最大的球直径在磨房取决于原料粒度分布。在成立后的最大的球直径是有必要形成的磨矿介质不同直径的电荷。大小收费的必须是最佳磨削特殊的原料。

結果 (中文) 3:

为一个粒子粉碎球的基本条件原材料必须满足是应力发生在它的影响超过矿物原材料的抗拉强度。这就是为什么最大球径在磨机取决于原料粒度分布。最大球径的设置后形成不同直径的研磨介质的必要性。大小对研磨的特殊原料，必须是最佳的充电。