英语词汇protractor怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	protractor
释义	N4597746protractorSpoken.1Fiction.9Magazine.10Newspaper.2Academic.24 protractor /prəʊˈtræktə(r)/ noun 1 an instrument for measuring angles, typically in the form of a flat semicircle marked with degrees along the curved edge 量角器, 分度规。 2 （亦作protractor muscle） chiefly Zoology a muscle serving to extend a part of the body 【主动】牵引肌。比较RETRACTOR.
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