shape of sand grain
... 不规则颗粒形状 irregular particle shape 砂颗粒形状 shape of sand grain 颗粒形状系数 particle shape factor ...
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原砂颗粒形状 grain shape of base sand
·2,447,543篇论文数据,部分数据来源于NoteExpress
但海砂的粒度比较粗,颗粒形状比较规则、结构比较致密、表面比较光滑、硬度和熔点都比较高,使它的用量受到一定限制。
But owing to its coarser grain, denser structure, smoother surface, higher hardness and melt point, so its proportioning rate was limited.
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