secondary treatment

US 
UK 
  • un.第二级处理;次级处理
  • Web二次处理;废水的二级处理;二级处理设备
un.
1.
第二级处理
2.
次级处理

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard