1098| 12
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张衡再现! 成都人自制的地动仪(图) |
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回复:张衡再现! 成都人自制的地动仪(图)
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回复:张衡再现! 成都人自制的地动仪(图)
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回复:回复:张衡再现! 成都人自制的地动仪(图)
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We have done that in 1976
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We have done that in 1976.
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回复:张衡再现! 成都人自制的地动仪(图)
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回复:张衡再现! 成都人自制的地动仪(图)
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