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	helianthus heliast heliastic heliazophyte helic helic- helical helical helical gear helically helical milling heliced helicella helices helichryse helichrysum helicidae heliciform helicina helicis helicitic helicity helicline helico helico-

英语词典包含332784条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。