“rotary system”的概念、定义、翻译、参考文献-科学参考

单词	rotary system
释义	rotary system Encyclopedia 工学钻井装备释 rotary system钻机旋转系统用以驱动钻具旋转而不断破碎岩石的设备组合。
随便看	normal nebula normal neighborhood normal net normal number normal ogive model normaloid normaloid matrix normaloid operator normal operator normal order normal ordering normal orthogonal basis normal partitioning normal p-complement normal pedal curve normal phase normal phase high performance liquid chromatography normal place normal plane normal point normal polygon normal polynomial normal population normal positive cone normal pressure/atmospheric concentration equipment

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。