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The sand control of oil well pump is very important for drilling-production system.
抽油泵防砂是钻采系统防砂的一个重要环节。
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The program of gas drilling well control equipment package.
气体钻井井控设备配套方案。
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The program of gas drilling well control equipment package.
气体钻井井控设备配套方案。
youdao