... 完钻finishing drilling 送钻bit feed 方余和方入kelly-up and kelly-in ...
基于20个网页-相关网页
... 钻头端轴承 bit end bearing 钻头给进，送钻 bit feed 钻头轨迹 bit track ...
基于1个网页-相关网页
automatic bit feed 自动送钻
automatic bit feed system 自动送钻系统
bit automatic feed 自动送钻
·2,447,543篇论文数据，部分数据来源于NoteExpress
Design idea and development method of a microcomputer control system for optimization WOB (weight on bit) automation bit feed of oil rig disc brake is discussed.
阐述了盘式刹车钻压优化自动送钻微机控制系统的设计思想和研制方法，给出了系统的软硬件设计方法。
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