As the core technology of smart drilling, intelligent drill pipe has long been a technical problem which can not be solved by domestic research staff.
智能钻杆作为智能钻井的核心技术，一直是国内研究人员久攻不下的技术难题。
As the core technology of smart drilling, intelligent drill pipe has long been a technical problem which can not be solved by domestic research staff.
智能钻杆作为智能钻井的核心技术，一直是国内研究人员久攻不下的技术难题。
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