After 3 minutes, tough and resilient ring drive shearing moiety, but because the ring is too thick, hardness too big, still can not fold its flexure to dismantle.
3分钟后，坚韧的戒指被剪断了一半，但由于戒指太厚，硬度太大，仍无法将其折弯取下。
It is found that the grain size of the powders milled by balls with different diameters is big, the hard phase is big too and not uniform, the hardness and bending strength are also lower.
结果表明：名义尺寸相同而实际尺寸相差较大的磨球所磨出的粉体粒度大且分布不均匀，烧结体硬质相颗粒粗大且等轴性差，抗弯强度和硬度均较低。
Particle size, the granularity of the material and its hardness, particle size is too big, is not conveying.
物料的粒度与其硬度有关，粒度太大，则不宜输送。
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