短語詞組短語Optical Rear Projection Screen 光學(xué)型背投影屏幕Rear Projection Fresnel Screen 透射型菲涅爾散射屏幕rear projection screen v ' 背投屏幕Rear Screen Projection 背投;背投影rear -screen projection 背景放映;后屏幕投影large screen rear -projection display system 大屏幕背投系統(tǒng) 返回 rear projection screen