“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	gravity observation instrument gravity of fishing ground gravity platform gravity potential gravity pressure drop Gravity Probe B gravity prospecting gravity prospecting in the mine gravity quay-wall gravity rainwater drainage system Gravity Recovery and Climate Experiment Gravity Recovery and Climate Experiment satellite constellation Gravity Recovery and Interior Laboratory Gravity Recovery and Interior Laboratory probe gravity reduction gravity retaining structure gravity retaining wall gravity satellite gravity satellite program gravity separation of wastewater gravity separator gravity settling Gravity settling equipment Gravity's Rainbow gravity survey

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。