“偏心扩眼钻头”的概念、定义、翻译、参考文献-科学参考

单词	偏心扩眼钻头
释义	偏心扩眼钻头 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	Wisconsin,Indiana,Yale and NOAO Observatory Wisconsin,Indiana,Yale and NOAO Telescope Wisconsin Model Wisconsin School Wisconsin State wisdom Wisdom across the river wisdom culture wisdom education wisdom literature Wisdom politics and law management project wisdom transpotation WISDRI Engineering & Research Incorporation Limited WISE wise information technology of med wise use of wetland Wishart Wishart density Wishart distribution Wishart statistic wishbone flower wish to broadcast Wiss-Forrer method Wisteria in the Guihu Park of Xindu District Wisława Szymborska

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