搜索 - 科创

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试试店主帮你写几句就行了~~~~ 让我动手也行~~~来来来起步价 1W 包硬件。 [s:178] 直接找店子估计只要买东西就行了

亚硝酸钠溶液滴加完毕后，缓慢滴加146ml 36.5%的浓盐酸，期间保证反应液温度不高于0℃，此过程放热较明显，笔者控制滴加速率为2s/滴，盐酸刚开始滴加时，没有明显现象，待盐酸滴加量约为10ml时，...

这个电容本来是接个电阻连电源的，用于上电启动，不过我加了信号源驱动，它就没用了，实际电路中参数取得好，也不需要这个启动电容的。

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