溶液和溶剂比
the solution to solvent ratio is important in the experiment.
在实验中,溶液与溶剂的比例很重要。
Selected 75% ethyl alcohol as the extraction solvent, the effects of extraction temperature, time and material-solution ratio to extraction conditions were investigated by orthogonal design experiment.
选用75%乙醇作提取溶剂,采用正交设计试验,研究提取温度、提取时间和料液比对黑果枸杞色素提取条件的影响。
瑞鸿网 · 双语新闻
瑞鸿网 · 双语娱乐资讯
瑞鸿网 · 英语口语
瑞鸿网 · 高考英语