Three patterns of technology introduction with different characteristics were formed in East Asia in this process. Each pattern affected the economy of different country or area in different ways.

在此过程中，东亚形成了三类特点各异的技术引进模式，并对不同国家和地区产生了不同的经济绩效。

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According to the characteristics of technology and economy of city untreated sewage source heat pump system, the mathematical models of annual cost object function are established.

根据现有城市原生污水源热泵的技术经济特点，以系统的费用年值为目标函数，建立了系统综合优化的数学模型。

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One of most important characteristics of knowledge economy lies in the rapid industrialization of advanced technology.

知识经济的一个重要特征，就是高新技术的产业化。

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