The cause of color-changing of unplasticized polyvinyl chloride(PVC-U) profile in the process of window-making and storage and its prevention are presented.

介绍硬质聚氯乙烯（ PVC U）异型材在储存、成窗的过程中产生变色的原因及其预防措施；

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If a child of any color or group is doing poorly in school it seems to us very important to know whether it is because he or she is of low intelligence, or whether some other factor is the cause.

如果任何一个肤色或种族的孩子在学校表现不好，在我们看来，知晓这是否是因为他或她的智商低还是其他因素是非常重要的。

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Too much red may cause feelings of anxiousness as the color in large doses tends to overstimulate the senses.

太多的红色将使人感到紧张，因为大面积的红色会扩大紧张感。

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Is color an issue that would cause some to be skeptical about the life chances of a candidate of color?

NPR: Obama Win Changes Perceptions Abroad

As a final measure of safety, in 1960 the Delaney anti-cancer clause was introduced which prohibits the use of any color found to cause cancer in animals or humans.

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Different versions of the same basic genes cause the physical differences between one person and another--eye color, height and the risk of getting sick.

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