“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	partitioning and conditioning partitioning and relaxation algorithm partitioning and transmutation partitioning and transmutation (P&T; P-T) partitioning family of mappings partitioning function partitioning matrix partitioning method partitioning module partitioning procedure partitioning technique partitioning tree partition interface coupling solution partition into classes partition into squares partition into subsets partition lattice partition management of waters and shorelines partition number partition numerorum partition of a graph partition of a measure space partition of an edge partition of an integer number partition of an interval

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