英语词汇“active layer”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	active layer
释义	active layer active layer [′ak·tiv ′lā·ər] (geology) That part of the soil which is within the suprapermafrost layer and which usually freezes in winter and thaws in summer. Also known as frost zone.
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