短語詞組短語grating reflector spectrograph 光柵光譜儀grating g spectrograph 光柵攝譜儀dual -grating spectrograph 雙光柵攝譜儀double grating spectrograph 雙光柵攝譜儀diffraction ? grating spectrograph 衍射光柵攝譜儀diffraction grating spectrograph 衍射光柵攝譜儀plane grating spectrograph 平面光柵攝譜機(jī);平面光柵攝譜儀concave -grating spectrograph 凹面光柵攝譜儀diffraction E grating spectrograph 衍射光柵攝譜儀 返回 grating spectrograph