英语词汇“echelon grating”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	echelon grating
释义	echelon grating echelon grating n. A diffraction grating made of parallel glass plates, each of which extends slightly beyond the next, used to examine extremely fine structures through interferometry. echelon grating echelon grating [′esh·ə‚län ‚grād·iŋ] (spectroscopy) A diffraction grating which consists of about 20 plane-parallel plates about 1 centimeter thick, cut from one sheet, each plate extending beyond the next by about 1 millimeter, and which has a resolving power on the order of 10⁶.
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