半融雪通过一种未知的物理过程被压实,而固态、无气泡的冰是由富含可溶性有机物的水形成的。
The slush is compacted by an unknown mechanism, and solid, bubble-free ice is formed from water high in soluble organic substances.
和普通的泥块不同,泥砖是一种十分紧实的材料。
It is a dense material -different from surrounding soil -and therefore discernible.
和普通的泥块不同,泥砖是一种十分紧实的材料。
It is a dense material - different from surrounding soil - and therefore discernible.
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