sand stratum
英
美
- 砂层
双语例句
- Quarternary sand stratum development, with surface run-off directly charging the underground water exists.
第四系砂层发育，地表水对地下水有直接补给关系。 - The resista nce decreases intensely when the slenderness ratio of the hot molding sand layer increases.
阻力随干砂层长细比的增加而急剧减小。
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