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	appellor append append append- appendage appendage appendaged appendance appendancy appendant appendant appendectomy appended appendic- appendic appendical appendiceal appendicectomy appendices appendicial appendicitis appendicle appendico appendico appendico-

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