竞争企业的短期供给曲线是边际成本曲线在平均可变成本曲线以上的那一部分。
The portion of the marginal-cost curve that lies above average variable cost is the competitive firm's short-run supply curve.
这条曲线都是在平均总成本和平均可变成本的最低点分别与它们相交。
It is drawn to intersect both average total cost and average variable cost at their lowest points.
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