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	ditch rider ditch stonecrop ditch sunflower ditchwater dite ditention ditentive diterpene diterpenoid ditetragonal ditheism ditheist ditheistic ditheistical dithematic dither dithered dithery dithi dithi- dithio dithio- dithio dithiocarbamate dithiocarbamic

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