英语词汇diffraction grating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	diffraction grating
释义	diffraction gratingn. a plate of glass or metal ruled with very close parallel lines, producing a spectrum by diffraction and interference of light 衍射光栅
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