- multi-step grouping
- 多级: multistage; notching; multis ...
- 分组: divide into groups
- 多级分离: mss; multi stage separation; stage trapping
- 多级分离器: multiple-stage separator; multistage separator; stage separator
- 多级分馏塔: multiple-stage separating column
下载手机词典可随时随地查词查翻译