短語詞組短語plane reflex grating 平麪反射光柵plane -grating spectrograph 平麪光柵攝譜儀Plane diffraction grating 平麪衍射光柵plane transmission grating 平麪透射光柵Plane reflection grating 平麪反射光柵replica of plane diffraction grating 平麪衍射複制光柵Variable included angle plane -grating monochromator 變包含角平麪光柵單色儀plane grating spectrograph 平麪光柵攝譜機;平麪光柵攝譜儀 返回 plane grating