“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	Bulletin of Flood and Drought Disaster in China Bulletin of Geological Science and Technology bulletin of land and household tax collection bulletin of marine disaster Bulletin of The Astronomical Society of India Bulletin of the History of Medicine Bulletin of the Library Association of China Bulletin of the Museums Association of China Bulletin of the Seismological Society of America Bulletin on God-Thanking Opera by Li Wenmao the King of Pacification bulletins Bulletin Signaletique bullet mark bullet nose curve bulletproof and bomb suppression felts and blankets bullet proof car bullet-proof clothing bullet-proof door bullet-proof glass bulletproof materials bullet screens Bull Fighting bull frog bullfrog breeding bullfrog culture

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。