英语词汇“permafrost layer”的读音、翻译、释义、用法及例句-开邑网

词汇	permafrost layer
释义	permafrost layerpermafrost layer1.■恒冻层
随便看	retaining ring bolt retaining ring for bearing retaining ring for shaft shoulder retaining ring for tyre retaining ring groove retaining ring lip retaining ring of tire retaining screen retaining screw retaining shield retaining snap ring retaining spring retaining suture fixator retaining the needle retaining time retaining valve retaining valve release retaining variety retaining wage retaining wall recycle oil recycle pump recycler recycle ratio recycle ratio of gaseous constituents

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