“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	bio-deodorization during composting biodeposition BIODEPTH biodetection biodeteriorative microbiology biodetoxification biodiagenesis bio-diesel biodiesel biodiesel prepared by emulsification biodiesel prepared by transesterification biodiesel technology biodiversity Biodiversity and Ecological Processes in Terrestrial Herbaceous Ecosystems biodiversity and ecosystem functioning experiment：BEF experiment biodiversity conservation bio-diversity conservation in China biodiversity decline in China Biodiversity Heritage Library biodiversity hotspots biodiversity index of aquatic organism Biodiversity Indicators Partnership biodiversity informatics biodiversity information standards Biodiversity International

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。