英语词汇“drill stem elements”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	drill stem elements
释义	drill stem elements 基本例句钻具 These two days we have been laying down drill tools.这两天我们都在甩钻具。 This paper analyses how the whipstocking screw drill tools easily trip in casing.因此，结构弯角必然较大，这就提出了这种钻具在套管内能否顺利下入的问题。
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