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

单词	objective grating
释义	objective grating objective grating See objective prism. objective grating [äb′jek·tiv ′grād·iŋ] (optics) A series of equally spaced parallel wires placed over the objective lens of a telescope; photographic magnitudes of stars are calculated from the relative brightnesses of images in the resulting diffraction pattern.
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