这种效果在物理学上被称为「朗伯余弦定律」（Lambert’s Cosine Law），其核心特征就是无论从哪个角度观察，屏幕的亮度看起来都是一样的。
Streaming capable
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Before diving into API design, it's worth asking: what is a stream?
Dani Barnett said she had felt she did not have anyone to talk to about menopause
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Google will finally be able to provide real-time driving and walking directions in South Korea, The New York Times reported. The company has received permission from the nation's Transport Ministry to export geographic data out of the country, which will allow it to provide GPS services as well as detailed listings for restaurants and other businesses.，推荐阅读服务器推荐获取更多信息