据http://www.simplyphysics.com/flying_objects.html 纪录,爆炸原因
9 o* I0 J) I. Q& twhen helium and liquid nitrogen combined to blast the end bell off the device' }# X) L% C$ D% L7 Y! N% Y: h
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[此贴子已经被作者于2011-3-26 18:35:30编辑过] # y+ a9 @* }4 O: T
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