The reason is the spatial concentration of population and resources had the effect of increasing returns to scale.
原因是人口和资源的空间集聚产生了规模收益递增的效应。
词典释义:
规模报酬递增
The reason is the spatial concentration of population and resources had the effect of increasing returns to scale.
原因是人口和资源的空间集聚产生了规模收益递增的效应。
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