Under standing the relation between urbanization and urban economy, we can explain further the infernal impetus system of urbanization.

理解了城市化与城市经济的关系，就可以进一步去解析城市化的内在动力机制。

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This is the basic impetus to build such system.

这正是构建这样的系统的原始动力。

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We will quicken the establishment of a modern industrial system and give impetus to industrial transformation and upgrading.

加快构建现代产业体系，推动产业转型升级。

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The impetus for the creation of a coordinated observing system to provide baseline data and ensure sustained monitoring came from IOC in the late 1980s and resulted in the creating of the Global Ocean Observing System (GOOS) in 1991.

UNESCO: World Water Assessment Programme (WWAP)