英语词汇“screen saver”是什么意思，“screen saver”的读音、用法及例句翻译-乐坝网

词汇	screen saver
释义	screen savern.（名词） A software program that displays constantly changing images or dims the brightness of a display screen to protect the screen from having an image etched onto its surface.屏幕保护程序：软件程序，其为藉由播放时时更换中的映像或是使显像屏幕亮度变暗来保护屏幕，避免某一图像残留在屏幕表面上
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