英语词汇“deep-sea trench”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	deep-sea trench
释义	deep-sea trench deep-sea trench [¦dēp ¦sē ′trench] (geology) A long, narrow depression of the deep-sea floor having steep sides and containing the greatest ocean depths; formed by depression, to several kilometers' depth, of the high-velocity crustal layer and the mantle. See deep-sea trench
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