Its specula reflection weakened while scattering reflection reinforced. 此時(shí)其鏡面反射能力減弱，漫反射能力增強。
That part of a luminaire designed to reflect the luminous flux of the lamps in required directions by means of specular reflection. 燈具中被設計成利用鏡面反射來(lái)在所需的方向上反射光源光通量的那部分。
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