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ccyy123:这是用固体燃料的? (2014-05-26 09:12)
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bigerg:前段时间看到中山大学有几个学生造了支探空火箭,也是用固体燃料的,但因为没有得到空管部门批准,一直发射不了。从这个例子看,玩火箭的门槛并不高吧? (2014-05-26 09:56)
骑楼街5号:原来铁人叔的副业是搞五金的[表情] (2014-05-26 11:20)
azuretears:可以在爬山时助推自行车吗[表情] (2014-05-26 19:39)
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steelman:只怕会在对面山头降落[表情]谢谢校长[表情](2014-05-27 04:23)嬀/color]
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steelman:你知道有点多[表情][表情]是用固体燃料D (2014-05-26 09:36)
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