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-现代词典

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	narr narra narraganset narragansett camelia camelidae camelina cameline cameline cameline oil camelion camellia camellia camelliaceae cameloid camelopard camelopardalis camelot camelry camel's camel's hair camel's hay camel spin camel's thorn camelteer

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。