“positive gain”的概念、定义、翻译、参考文献-科学参考

单词	positive gain
释义	positive gain 激活媒质增益
随便看	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) drimane drimenol

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。