In the context of it application of the service concept, the service model is an abstraction of the it services implemented within an enterprise.

在服务概念的IT应用环境中，这个服务模型是企业中实现的IT服务的一个抽象。

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The service selector pattern extends the simple service proxy pattern and introduces the concept of routing service requests.

服务选择器模式对简单服务代理模式进行了扩展，引入了路由服务请求的概念。

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We then will describe the central concept of the service model and follow that with method content and workflow details.

然后，我们将介绍服务模型的中心概念，再介绍方法内容和工作流细节。

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As the collaboration developed, the team constructed a new business model to overcome the lack of sanitation infrastructure and solve the issue of waste removal: the concept of a service-based system.

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Within three years of formation, the company came up with the concept of a subscription service.

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And in 1934 Congress created a new agency, the FCC, and handed it the telephone lines and the formal concept of a telecommunications service, with language lifted wholesale from existing rail legislation.

ECONOMIST: Economics focus