英语词汇“oil derrick”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	oil derrick
释义	DictionarySeederrick oil derrick oil derrick [′ȯil ‚der·ik] (petroleum engineering) Tower structure used during oil well drilling to aid in raising and lowering of drill and piping strings.
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