That is, resorting to a simple rule of spatial activities allocation, without giving details about the factors that determine the agglomeration of activities, we analyze the two-point economy and the three-point economy and probe into the saddle-path equilibrium.
我们用空间活动的简单规则,在没有详细给定影响集聚活动的重要因素情况下,分析两点经济系统和三点经济系统,并着重探讨鞍状均衡。
probe into the two point at issue get involved in judicature of "black whistle" in the profession football umpire
司法介入职业足球裁判“黑哨”的两个焦点问题
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