Here's a - c over 2b and here's a - c over b.
这里是/2b,这里是/b
So this is a - c over b and this is a - c over 2b so this distance and this distance are meant to be the same.
这点是,/b,这点是,/2b,这两段长度应该是相等的
Well, the monopoly quantity was a - c over 2b and the competitive quantity was a - c over b, just to remind you of those, they're on our picture.
垄断产量是/2b,完全竞争产量是/b,提示大家一下,这几点都在图上呢
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