短語詞組短語diffraction ? grating spectrograph 衍射光柵攝譜儀diffraction grating spectrograph 衍射光柵攝譜儀diffraction E spectrograph 衍射攝譜儀Bragg diffraction spectrograph 布拉格光柵攝譜儀diffraction E grating spectrograph 衍射光柵攝譜儀 返回 diffraction spectrograph