英语词汇“casing spear”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	casing spear
释义	casing spear casing spear [′kā·siŋ ‚spir] (petroleum engineering) An instrument used for recovering casing which has accidentally fallen into the well.
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