英语词汇“echelon grating”是什么意思，“echelon grating”的读音、用法及例句翻译-烛光网

词汇	echelon grating
释义	echelon gratingn.（名词） A diffraction grating made of parallel glass plates, each of which extends slightly beyond the next, used to examine extremely fine structures.梯状光栅：用来检查极小结构的衍射光栅，由平行的玻璃片组成，每块玻璃片都比邻近一块长出一点
随便看	heinie heinies Heinlein heinous Heinz heir heir apparent heirdom heirdoms heired heiress heiresses heiring heirloom heir presumptive heirs heirs apparent heirship heirs presumptive Heisenberg heist heisted heisting heists Hejaz

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