色调涉及到阴影以及物体颜色光亮程度；结构涉及到物体的外观特征。
Tone refers to shading of light and dark on an object and texture is the visual and tactile surface characteristics of an object.
经冷轧后实施热处理、酸洗或其它相当处理，再以冷轧加工使表面为适当之光亮程度者。
Those finish, after cold rolling, by treatment, by heat packing or other equivalent treatment and lastly by cold rolling to give an appropriate luster.
研究人员还检测了果蝇唾液中显示困倦程度的酶，还测试了果蝇将光亮与令人不快的刺激联系起来的能力。
The researchers also tested the flies' saliva for enzymes that signal sleepiness and measured the flies' ability to associate a light with an unpleasant stimulus.
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