“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	microbial chemotaxis microbial community microbial community succession microbial control microbial corrosion microbial decomposition microbial degradation microbial degradation of petroleum hydrocarbons microbial digestion microbial disease microbial diversity microbial drug resistance microbial ecological engineering microbial ecological evolution microbial ecological functioning microbial ecological groups microbial ecological model microbial ecology microbial ecology of metallurgy microbial ecophysiology microbial electrode sensor microbial electromagnetic field microbial element transformation microbial energy microbial engineering

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。