短语词组短語grating spectrum digital 光柵光譜伴線grating spectrum satellite 光柵光譜伴線;光柵光譜grating spectrum detail 光柵光譜the Diffractive Grating Spectrum 光柵衍射光譜crossed grating spectrum 交叉光柵譜grating spectrum X -ray X射線光柵光譜 返回 grating spectrum