So I'm going to show you a little trick for figuring that out.
因此接下来我会给你们讲一个,算出这个来的小把戏。
And in particular, I'm going to cheat slightly I'm going to use a little bit of abusive mathematics, but I'm going to show you a trick to figure it out.
尤其要说明的是,我会有一点不属实在里面,我会滥用一点数学,但是,我会教会你们这个小把戏的。
So, it's a little bit of a trick when you're dealing with ions.
因此,这是一个处理离子问题时的小技巧。
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