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8Â¥: Originally posted by zhilang at 2012-04-07 23:51:56:
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2Â¥: Originally posted by zhilang at 2012-04-07 16:31:24:
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http://en.wikipedia.org/wiki/Trivialization_(mathematics).

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[ Last edited by zhilang on 2012-4-7 at 22:12 ]
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