“step drilling tool”的概念、定义、翻译、参考文献-科学参考

单词	step drilling tool
释义	step drilling tool Encyclopedia 工学磨削基础理论释 step drilling tool台阶钻能够将钻孔、扩孔复合为一次进刀加工完成的钻头。又称阶梯钻、宝塔钻。
随便看	subtitle subtitle division Subtitle report subtle theorem Subtleties Culled From the Storehouse of Daode Jing Subtlety of Chu Ci subtopological nearness space subtopology subtotal subtotal cluster set subtotal laryngectomy subtracter subtracting double-pass spectrograph subtraction subtraction curve subtraction formula subtraction method subtraction of vectors subtraction point subtraction position subtraction sign subtraction spectrum subtraction weighting subtractive subtractive color mixing

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。