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	annularities annularity annularity annular ligament annular ligaments annular-ligaments annularly annularly annulary annulate annulate, annulated annulated annulately annulately annulation annulations annulet annulets annuli annullable annullable annulled annuller annuller annulling

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。