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Terms for subject Drilling containing 更 | all forms
ChineseEnglish
上新世-更新世Plio-Pleistocene
中更新世/统Medio-Pleistocene
变更transform
变更alternate
可更换的套筒稳定器replaceable sleeve stabilizer
可更换的镶嵌块replaceable insert
不须起出钻柱可更换钻头retractable bit
更换change out
更换配件fittings change
更换阀门revalving
更新世/统Pleistocene
起下钻更换的钻头round trip changed bit
过早更换钻头premature bit change

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