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但无论是 OLED 像素发光还是 LCD 背光板发光，它们发出的都是（近似）全向的光线——你能看到，你旁边的人也能看到：
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SpaceX rocket fireball linked to plume of polluting lithium。业内人士推荐safew官方下载作为进阶阅读
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