搜索 - 科创

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2008年5月，驻伊联军展示在南部城市巴士拉附近缴获的什叶派穆斯林武装自制多管火箭发射车，这辆车在发射筒放下时看起来是人畜无害的普通运输工具，而一旦把发射管露出，就成了致命的武器。请仔细观察这幅图...

改造尾座主轴时因为材料太硬(为调制42CrMo)，我手上的钻头没有哪一种能钻得动。鸽了一年多的电火花机必须得完成了，之前已经把机械部分全部完成，等买的软线到了再把电路部分完成就可以试机了。主电路采用可...

新买了一台落地扇，带遥控功能，其它都很满意，但即使在最低档位时风噪、风量都很大，因而在睡眠模式下，影响入睡。随往五金店买了一个86型可控硅无极调速，简单安装了一下，风速倒是可调到很温和，但噪音反而大了...

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