英语词汇“protractor”的读音、翻译、释义、用法及例句-范文大全网

词汇	protractor
释义	protractorpro·trac·tor /proʊˈtræktər ; prəˈtræktər / noun [countable] (~~mathematics数学~~) an instrument for measuring and drawing angles, usually made from a half circle of clear plastic with degrees (0° to 180°) marked on it量角器；分度仪
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