英语词汇optical crown怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	optical crown
释义	optical crown 冕光学玻璃(一种低色散和折射率较低的光学玻璃)
随便看	outing flannels outings out in left field out in nowhere out in the cold out-in-the-cold (out) in the cold out in the wilds (out) in the wilds outintrigue outintrigued outintrigues outintriguing outinvent outinvented outinventing outinvents outisland outissue outissued outissues outissuing outjest outjested outjesting

英汉双解词典包含548777条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。