core bit

US 
UK 
  • un.岩心钻头;空心钻;钻心
  • Web取心钻头;取芯钻头;能取岩芯的钻头
un.
1.
岩心钻头
2.
空心钻
3.
钻心

Sample Sentence

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