“eccentric reaming bit”的概念、定义、翻译、参考文献-科学参考

单词	eccentric reaming bit
释义	eccentric reaming bit Encyclopedia 工学钻井装备释 eccentric reaming bit偏心扩眼钻头常规阶梯钻头的扩眼部分的旋转轴线偏离钻柱旋转轴线一定距离，假想存在一个以钻柱旋转轴线为中心线直径等于的圆柱，仅保留扩眼部分在假想圆柱内的刀翼，同时领眼部分和上部钻柱也必须落在假想圆柱内的结构限制的钻头。
随便看	Bellman equation Bellman-Ford algorithm Bellman-Ford's algorithm Bellman function Bellman-Gronwall inequality Bellman-Harris process Bellman inequality Bellman principle Bellman principle of optimality Bell number Bell of Purity Temple Bellona Bell operator bellow bellows bellows conjecture bellows plugging technology Bell palsy Bell polynomial bell prover gas flow facility Bells-and-Drums Office Bell series bell-shaped bell-shaped curve bell-shaped distribution

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