This paper reviewed the mostly viewpoints and the conclusion is the urban competitiveness and the global urban system is decided by the factors and their coupling mechanism.
本文对主要学术观点加以综述，认为城市竞争力与全球城市体系的形成是由城市要素及其耦合机制决定的。
2
With this definition, EAI is transformed from the relatively simple coupling of applications to a global business process implementation and integration.
这一定义，EAI从一个相对简单的应用关联变成了总的业务流程的实施和集成。
3
Since the gear engagement is a common coupling form between rotors, the transfer matrix of skew gear engagement in global coordinate system is deduced based on the concept of coupling element.