glacial drift 冰渍 ; [地理] [水文] 冰碛 ; 冰河冲击层 ; 冰碛物
mantle of glacial drift 冰碛物覆盖 ; 冰碛覆盖层
glacial l drift 冰渍 ; 冰碛
glacial drift detail 冰川漂流
As geologists mapped glacial deposits in the late nineteenth century, they became aware that there were several layers of drift, the lower ones corresponding to earlier ice ages.
19世纪晚期，在地质学家对这些冰川沉积进行定位的时候，他们意识到有好几个漂流层，位置较低的对应的是更早的冰川期。
One of a series of short scars made by glacial DRIFT on a surface of bedrock.
冰川漂流物在基岩表面留下的一系列短痕之一。
The uranium deposits are obscured by sand, peat and glacial drift.
铀矿床被砂子，泥炭和冰碛物所覆盖。
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