“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	Chaqu Verses from the Collection of the Administration of Performances for the Qing Imperial Court char CHARA Chara CHARA Array characheristic functions characins characins，tetras character character actor character animation character archives Character Creation Score character dance character displacement character entry character family character feature film character font library character formula character frequency character generator character group character image system character input device

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。