基本解釋[物理學(xué)]光反射系數(shù)英漢例句雙語例句High-purity imported aluminum reflector is used to effectively improve the reflectivity and ensure the output of luminous flux.采用高純度進(jìn)口鋁反射罩，有效提高了反射率，并確保了光通量的輸出。luminous reflectivity更多例句詞組短語短語luminous intensity reflectivity 發(fā)光反射系數(shù)luminous reflectivity更多詞組專業(yè)釋義物理學(xué)光反射系數(shù)