sheep 當前離線
金牌老友 (超級)
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designed so that even if the train stops it will lose balance. peter236 發表於 2011-7-19 11:37
it should be This is just basic physics of railway design. Just can't believe some people spin ... peter236 發表於 2011-7-19 11:43
發表於 2011-7-19 11:31
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