英语词汇echelle gratings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	echelle gratings
释义	echelle grating 【光谱学】中阶梯光栅
随便看	outer planet outer planets outer product outer products outers Outer Seven outer shell outer-shell virus outer space outer spaces Outer Space Treaty of 1960 outer suburb outer-suburban outer suburbs outer venture outerwear outerwears outer woman outer world outface outfaced outfaces outfacing outfall outfalling

英汉双解词典包含483723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。