搜索 - 科创

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我今天试验了一枚硝镁火箭，配方是：硝酸钾，镁粉，虫胶漆。但是点不燃，哪位兄弟能帮帮我，这三种物质是否会相互影响？？？？？？能为我提供点更好的硝镁火箭药的配方

在别人那儿见用烙铁焊接铝水箱的加了一点助焊剂很容易上锡有没有知道是什么化学助剂的网上只见有卖的没有配方啊貌似有锌锡硫酸还是盐酸只类的那位知道的介绍下

把pll sstc的电路板焊出来了，但是就是不工作，求大侠们帮我看看是什么原因电路是这个正面反面次级调压器供电，但是电流很小 0.4A的样子会不会是我磁环绕反了是初级30匝次级1匝吗

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