英语词汇“stigmatic concave 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	stigmatic concave grating
释义	stigmatic concave grating stigmatic concave grating [stig′mad·ik ′kän‚kāv ′grād·iŋ] (optics) An optical element with many parallel grooves on a concave optical surface; combines the two functions of light dispersion and focusing in one dispersive element; used in space optics, in food and metal analysis, and as a dispersive element of spectrophotometers and spectrographs.
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