This front LCD performs various functions in addition to showing people what they look like.

这个前置的液晶屏除了让被拍摄者看到自己的样子，还有许多其他功能。

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This article introduces the systems of front and back projectiles in which CRT or LCD used as the projection devices.

本文介绍了用CRT和LCD作投影器件的前投影和背投影电视系统。

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