英语词汇“focusing ring”的意思、释义、用法解释及翻译-春雷网

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词汇	focusing ring
释义	Definition of focusing ring in English: focusing ring noun A ring on the body of an optical instrument, especially a camera lens, which is rotated to focus the instrument (typically by adjusting the relative position of the lenses). Origin Late 19th century; earliest use found in The Official Gazette. Definition of focusing ring in US English: focusing ring noun A ring on the body of an optical instrument, especially a camera lens, which is rotated to focus the instrument (typically by adjusting the relative position of the lenses). Origin Late 19th century; earliest use found in The Official Gazette.
随便看	doter doter dotes do tests on dote upon doth Dothan dothead do the business do the business do the decent thing do the decent thing do the dirty do the dirty on do the dirty on sb do the dirty on somebody do the dirty on someone impress something on impress sth on impress upon impress upon someone imprest imprimatur imprimaturs imprint

　

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