The hair is changed in color.

头发变色了。

But this synthetic varnish will not change in color as it grows old.

但这种合成漆不会随着时间变迁而改变颜色。

European starlings will actually change the color of their beak in the summer, then in the winter.

欧洲椋鸟实际上会在夏季和冬季改变其喙的颜色。

Sometimes a chemical change will cause a change in color, produce an odor, create a sound, release gases, or produce light.

有时候化学变化会改变颜色，产生气味和声音，释放气体，或者产生光。

It then analyzes the pixels in the cell for the most intense changes in color or light.

然后，它分析细胞中的像素，以找出最强烈的颜色或光线变化。

" Yellowed" simply means changing in color from, in this case, white paper to slightly yellow paper.

“泛黄”仅表示颜色从白色纸张变为浅黄色纸张。

The FDA says people should look for changes in color, thickness, or feel to learn if foods are all right to eat.

美国食品药品监督管理局表示，人们应该通过观察颜色、厚度或触感的变化来了解食物是否可以食用。

This reaction produces a change in color, indicating that the sample tested positive and that the individual has been exposed to the virus.

这种反应会导致颜色发生变化，表明样本检测呈阳性， 并且该人已接触过该病毒。

When a drug is placed across the lines and the card is put in water, a change in color will show if the drug is safe.

将药品放置在线条上，之后将纸卡放入水中，颜色的变化即可知晓药品是否安全。

We can easily see where the left edge of the pole starts, because there's a change in color that persists across many pixels vertically.

我们可以很容易地看到极点的左边缘从哪里开始，因为颜色的变化会在垂直方向上持续存在许多像素。

The change in color can be easily recognized without special equipment. The researchers add that this method costs less than other tests for Zika.

不需要特殊的设备就可以很容易地识别颜色的变化。研究人员补充说，这种方法比其他检测寨卡病毒的方法成本更低。

In these types of tests, you just dip a special strip of paper into some urine, and simple chemical reactions trigger a change in color.

在这些类型的测试中，您只需将一条特殊的纸条浸入一些尿液中， 简单的化学反应就会引发颜色变化。

He developed cataracts later in life and was deeply troubled by its effects on his work, which you can tell from the change in color tone of his later canvases.

他晚年患上了白内障， 并对其作品的影响深感困扰，这一点从他后期画布色调的变化就可以看出。

Many ex-Confederate soldiers, knowing the frantic fear of men who saw their families in want, were more tolerant of former comrades who had changed political colors in order that their families might eat.

许多人过去在联盟的队伍里当过兵，知道家里缺衣少食的人多么害怕，因此以宽容的态度对待过去的战友，如果他们是为了让家人得以糊口而改变了自己的政治面目。

Our psychological time could be compared in terms of environment to the walls of a room, but in our case the walls would be constantly changing in color, size, height, depth and width.

我们的心理时间可以根据环境与房间的墙壁进行比较，但在我们的例子中，墙壁的颜色、大小、高度、深度和宽度会不断变化。