短語詞組短語plane reflex grating 平面反射光柵plane -grating spectrograph 平面光柵攝譜儀Plane diffraction grating 平面衍射光柵plane transmission grating 平面透射光柵Plane reflection grating 平面反射光柵replica of plane diffraction grating 平面衍射復(fù)制光柵Variable included angle plane -grating monochromator 變包含角平面光柵單色儀plane grating spectrograph 平面光柵攝譜機(jī);平面光柵攝譜儀 返回 plane grating