The main causes of agglomeration economics are vertical division of production and knowledge spillovers.

聚集经济的主要来源是生产纵向分工和知识溢出。

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The water supply mode, fire protection vertical division blocks, calculation of water supply, and hot water resources were explored.

并就设计中遇到的给水方式，消防分区，用水量计算，热水水源等问题进行了探讨。

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On the basis of economic complementarity and transformation from vertical division to horizontal division, "10 +3" will go ahead in the future.

“1 0 +3”区域合作的有利条件在于其经济关系的互补性和国际分工所具有的从垂直分工向水平分工转化的特点；

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We expect this vertical integration in the plastics division to ensure a stable and consistent supply of feedstock, hence providing low-cost advantages in the long run.

FORBES: Dow Chemical Rides To $45 On Plastic Prowess