unit system

US 
UK 
  • un.单元系统
  • Web单位制;单位系统;单元制
un.
1.
单元系统

Sample Sentence

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