pre concentration

US 
UK 
  • un.预富集;预浓缩
  • Web浓缩富集;前浓缩;预先
un.
1.
预富集
2.
预浓缩

Sample Sentence

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