So let's assume that epsilon prime is greater than epsilon.
假设ε’,比ε大。
And that factor is 4 pi times epsilon zero.
这个常数是4乘π再乘ε
w we have the environment doing work on the system OK, now we've assumed that epsilon prime is greater than epsilon.
大于零,that,is,in,this,one,在这里环境对系统做功,好,现在我们假设,ε’比ε大。
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