Light vertical linear fade in each input box background.

输入框背景中淡淡的垂直线性渐变。

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Controlling the source (s) of light in your designs (even if just with a linear or radial gradient) can help create atmosphere in your page designs.

控制好光源位置能够为你的页面设计创造独特气氛(即使仅仅是一个简单的线性或径向渐变也能达到效果)。

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And when the traffic light turns green, you convert it back rotational kinetic energy into linear kinetic energy and you keep going again.

绿灯亮起之时，将其转换回来，将旋转动能，转化为直线动能，你又再往前行进。

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In this case, however, the light is polarised in a different linear direction for each eye, so as to match the polarisation of the two side-by-side projectors used to show the film.

ECONOMIST: Animation takes on a whole new reality

With a different hole design, crystal fibres can do the opposite trick as well, spreading the light much more evenly across the width of the fibre and thereby reducing non-linear effects.

ECONOMIST: A new approach to making optical fibres