搜索 - 科创

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当年我们维护25米射电望远镜方位旋转驱动电机（65KW*2台）组件，使用了角钢临时焊接的框架+4台2T手动液压千斤顶，否则依靠我们几个文弱书生的人力，无论如何是无法安全、准确的实现拆卸与复装电机的。

不管是安卓还是iphone，去下一个免费的app叫Zello，然后加入channel： Kechuang，密码是KeChuang2013（区分大小写）. 不用的时候记得推出background不然耗流...

随风2010-5-8 13:34:51我不是很了解怎么申请专利的过程有没有经验丰富的？？能介绍一下呀？？随风 2010-5-8 13:35:32或者那里能查询到比较详细的过程？？鸿飞 201...

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