求职面试常用英语口语 Q:What contribution did you make to your current (previous) organization? (你对目前/从前的工作单...
July 2012 EU Tyre Labelling Regulation 1222/2009 Industry Guideline on tyre labelling to promote the use of fuel-...
优化手性化合物的分离方法时,如何增加分离选择性? 正相手性色谱柱上增加分离度的方法有:降低流动相中醇的含量、降低柱温、更换流动相中...