透明光油 meaning in Chinese

gloss optimizer

If more wearable surface of picture is needed , you can spray some transparent oil on its surface after the picture get dry and put it into oven for 3 - 5 minutes under 120 . after being cooling naturally , the luster and wearable capability will become better clearly
若要使图像更加耐刮，可在干燥后的图像表面均匀喷涂透明光油，（放入烤箱中120度烘烤3 5分钟），待自然冷却后，光泽及耐磨效果有明显增强。