公司以扎实的科研力量为依托，雄厚的生产实力为基础。
钻杆
drill rod
暂无补充释义。
相关例句
更大的直径可选装钻杆夹持器,套管驱动器和摇管器.
如图所示的钻杆夹持装置可安装最大直径为444毫米的钻具和套管.
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