hole structure

US 
UK 
  • un.钻孔结构
  • Web结构形式;井身结构;气孔结构
un.
1.
钻孔结构

Sample Sentence

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