英语词汇“principal ray”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	principal ray
释义	principal ray noun 1. : principal visual ray 2. : the one ray of the rays entering an optical instrument from any given point of the object that passes through the exact center of the aperture stop
随便看	twenty-fourth twenty-nine twenty-ninth twenty-one twenty-penny nail twenty questions twenty-second twenty-seven twenty-seventh twenty-six twenty-sixth twenty-third twenty-three twenty-three skiddoo twenty-twenty twenty-two twerp twi twi twi- twibil twibill twice twice twice-accented octave

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