“background air”的概念、定义、翻译、参考文献-科学参考

单词	background air
释义	background air 本底空气
随便看	drill speeder drill spindle drill spindle support drill spindle with rack drill stand drill steel drill(-steel) sharpener drill stem drill-stem test drill stock drill stop drill string drill-string tripping drill tap drill thrust drill tip drill tower drill unit drill unit with fertilizer attachment drill wagon drill way drill weave drill with ferrule Drimafon dye (瑞士) Drimalan dye (瑞士)

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。