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Terms for subject Drilling containing 封入 | all forms | in specified order only
ChineseEnglish
封入seal in
封闭上部钻杆阻止泥浆进入的阀trip valve
嵌入式密封insert seal
固井工具嵌入式密封总成insert seal assembly
注入水泥的膨胀式套管封隔器cement-filled inflatable casing packer

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