英语词汇“选用加长钻杆于较大能力的钻机”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	选用加长钻杆于较大能力的钻机
释义	选用加长钻杆于较大能力的钻机 The extension drill rod which can be used for higher capacity drill；the drill hole can be extended to sezeral meetrs；when drilling the straight hole；the core lifter can help coring.
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