shifting sand是什么意思 shifting sand怎么读
shifting sand的用法和样例
- Sand under quick condition is often called quicksand.
通常把快速流动的沙叫做流砂。 - Reason for the formation of fly sand was discussed from the standpoint of physico-chemistry of silicate.
从硅酸盐物理化学角度讨论飞砂的成因。
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