“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	seawater ammonia nitrogen measuring instrument sea water chemical resources seawater chemistry seawater circulating cooling technology seawater cooling technology seawater culture technology of crustaceans sea water desalinization sea water desulfurization seawater desulfurization technology seawater direct cooling technology seawater dissolved oxygen measuring instrument sea-water drilling fluid Seawater drowning seawater encroachment seawater flue gas desulfurization sea water gold washing seawater heavy metal measuring instrument seawater injection seawater intrusion seawater intrusion disaster in China seawater intrusion monitoring seawater nutrient analyzer seawater optical properties measuring instrument seawater pH seawater pH meter

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。