英语词汇“test pit”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	test pit
释义	test pit noun : a shallow shaft sunk in ore or overburden to determine the existence, grade, or extent of a mineral deposit
随便看	outlaughs outlaw outlawed outlawer outlawest outlawing outlawries outlawry outlaws outlawwer outlawwest outlay outlaying outlays outleading outleads outleap outleaped outleaping outleaps outleapt outlearn outlearned outlearning outlearns

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test pit