这一发现解释了秋天的颜色是黄色和橙色，而不是像枫树或漆树那样明亮的红色和紫色。
This unmasking explains the autumn colours of yellow and orange, but not the brilliant reds and purples of trees such as the maple or sumac.
而木匠用铅笔则通常是明亮的红色。
明亮的红色显示出土星上大气层状况清晰可辨的区域。
The bright red color indicates areas where Saturn's atmosphere is relatively clear.
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