基本解释[物理学]掠入射衍射词组短语短语X -ray grazing-incidence diffraction 射线掠入射衍射grazing incidence x -ray diffraction 掠入射x射线衍射;法grazing -incidence x-ray diffraction 掠入射x射线衍射专业释义物理学掠入射衍射