规模效益——经营大小是如何影响平均成本的。

Scale effects — How the size of an operation affects average costs.

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同时要加强对影响平均住院日的管理因素的控制，提高医疗质量，缩短平均住院日。

At the same time, we should strengthen control these factors to improve the medical quality and shorten the average hospital stay.

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所以如果Maple City建立限制新的高层建筑的法令的话，这种法令不会影响平均房价。

So if Maple City were to establish strict laws that limit new building construction, these laws will have no effect on average housing prices.

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