搜索 - 科创

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RT，本人也不想说什么，看着老帖翻就好了置顶：https://www.kechuang.org/t/8786 固体火箭板块资源索引https://www.kechuang.org/t/83352 ...

雕虫小技，新手，求指教…… 求更准确的时间算法…… 我用的是内部定时器…… 单片机型号stc89c52 电路图一张效果图程序 #include <reg52.h> #define uc uns...</reg52.h>

常见化学物质俗称大全一、硫酸盐类： 1.皓矾： ZnSO4·7H2O 2.钡餐,重晶石： BaSO43.绿矾,皂矾,青矾： FeSO4·7H2O 4.芒硝,朴硝,皮硝： Na2SO4·1...

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