“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	half-chair conformation half-closed interval half-closed liner completion half-closed open hole completion half cocoon half-coded field of view half concentric optical cavity half-concentric optical cavity half-concentric resonator half-concentric resonator, hemi-concentric resonator half-confocal cavity half confocal optical cavity half-confocal optical cavity half-confocal resonator half-confocal resonator, hemiconfocal resonator half-conformally flat half-controlled inverting circuit half-cycle half-degree half density radius half-density radius half diallel mating design half-disk half-diving depth half-duplex transmission

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