“steep-grade tunnel(l)ing”的概念、定义、翻译、参考文献-科学参考

单词	steep-grade tunnel(l)ing
释义	steep-grade tunnel(l)ing 陡坡隧洞掘进
随便看	office printing machine office procedure manual office revolution officer-in-charge officer's check office space office supplies office telephone office terminal office typewriter official official acceptance test official approval official apreciation official assignee official call official competences official compound official devaluation official discount rate official drug official exchange rate official exchange rate system official fixed price official foreign currency deposit system

科学参考收录了1248194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。