extraction gravimetry
提取重量法
基于1个网页-相关网页
·2,447,543篇论文数据,部分数据来源于NoteExpress
改变树脂与煤的重量比,研究离子交换树脂法的提取效果。
The ion exchange resin method was studied by changing the weight ratio of resin to coal when the reaction finished.
youdao
应用推荐
模块上移
模块下移
不移动