搜索 - 科创

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本帖最后由 bh，王者归来于 2014-1-19 02:45 编辑 RT 有奖竞答（各50分): 谁知道最后一张图和倒数第二张图分别用的什么燃料?

数据：总长7cm，内径1.8cm,rap总质量约15克。采用水泥堵漏王，加内置铁丝制得拉喷，试验后完好无损。药柱内孔3mm采用AP＋镁粉成功点燃因为怕炸，站得很远，火焰高约6C...

所有参赛帖子已被复制进入内部板块，均有短消息通知，如没有移动通知，请不晚于12日12时前提出。八哥D2 https://www.kechuang.org/t/59071Qharrq https://...

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