搜索 - 科创

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引用第9楼hambaby于2008-07-27 14:42发表的 :很多实际使用的场合，负载电流几乎没有，如小功率的阴极射线管、盖革计数器管、光电倍增管等。这个倒是、所以它的性质决定了其只能用在小电...

引用第9楼hamdad于2008-11-02 21:40发表的 :如果作为喷管的耐火添加材料，石棉粉绝对没有Al2O3粉好用，直接去买磨料级的刚玉粉吧。霉帝航天飞机的隔热瓦就是高铝陶瓷的。对于ＫＮ系...

引用第10楼wtblove1981于2008-09-09 22:29发表的 :买了可以做个汽车倒车监视器这个创意有点…………还不如用个摄像枪引用第11楼hambaby于2008-09-09 22:2...

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