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protractor

US [proʊˈtræktər]
UK [prəˈtræktə(r)]
  • n.量角器;分度规
  • Web分度器;量角器工具;半圆规
Plural Form:protractors  
protractor
n.
1.
量角器;分度规an instrument for measuring and drawing angles, usually made from a half circle of clear plastic with degrees (0˚ to 180˚) marked on it

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