搜索 - 科创

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前天拿到一套模具,是按照坛子里某同学的图纸做的,做黏土喷管的三件套现在我用黏土先干燥,磨成粉,颗粒度与做BP的碳粉粗细相同,然后在黏土粉中加入饱和硅酸钠溶液,最后放入模具成型想问下,为了体现加了硅酸...

鄙人不才，粗通谭浩强的《C语言程序设计》。近来在图书馆找到一本老书，是《C语言程序设计实训》，里面讲了很多图形设计、数字音乐鼠标应用等等内容，我想提高自己的水平，故选用它。但是里面的编译器是tc2.0...

之前听说，大功率(kw以上)的TC接地不能用市地，因为高压可能打火到火线上窜到电器中损伤电器！今天我去楼顶拉了避雷地线到家里，准备给TC接地，可是测量发现，这个地线跟插座里的地线是相通的。现在我困...

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