Purpose: General purpose switching and muting, LCD back-lighting, supply line switching circuits.

用途： 用于一般静音开关，液晶显示器的背景照明，线性开关电源。

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Frequently it has a hinged glass cover to hold copy flat, and may have a removable section in which a transparency holder can be positioned for back-lighting illumination.

一般都备有铰链着的玻璃盖面，以把稿件夹平。有些更可以换上透明片架，在后面打灯照明。

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Shooting someone in front of a window during the day can present bad back-lighting problems—the camera will expose for the bright window, leaving your subject underexposed and lost in shadow.

白天给一个站在窗户前的人照相可能会碰到反光问题。相机暴露在明亮的窗户前，使得人物曝光不足而出现阴影。

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Islanders star John Tavares was a 16-year-old back then lighting up the Ontario Hockey League.

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And, she had great hands. (ESPA's employee training is famous for its rigor.) The back-and-forth to the shower wasn't ideal, but because of the sizable room and the low lighting, I didn't feel my mood much disturbed.

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An MOCVD order snap-back is inevitable as LEDs go from 5% of all lighting to over 30% over the next few years.

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