down hole equipments是什么意思


中文翻译井下设备

网络释义

1)down hole equipments,井下设备2)electric equipment under ground,井下用电设备3)underground transportation and equipment,井下运输与设备4)underground power supply and equipment,井下供电与设备5)trackless equipments in the pit,井下无轨设备6)downhole packing,井下成套设备

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