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http://physics.stackexchange.com/questions/249096/is-it-possible-to-produce-higher-temperature-than-the-light-source-with-passive
您即将离开知乎,请注意您的帐号和财产安全。
http://physics.stackexchange.com/questions/249096/is-it-possible-to-produce-higher-temperature-than-the-light-source-with-passive