gxyzd1 发表于 2007-3-22 23:46

视频：supermassive black holes

supermassive black holes
part 1
http://www.tudou.com/v/_OXYDhbS20E

gxyzd1 发表于 2007-3-22 23:51

part 2:

http://www.tudou.com/v/otIXSJPzKnI
页: [1]
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