For example, these could be service requests for a building, a printer, or an IT system.

例如，这些服务请求可能是一个构建模型、打印机或IT系统。

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Building a location-aware service involves many tasks, big and small, and one (relatively small) task may be to convert coordinates from one system to another.

构建位置感知服务涉及多种任务，或大或小，其中一项任务(相对较小)可能要将一种系统坐标转换为另一种系统坐标。

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When building a service, developers commonly reuse patterns, components, or legacy system artifacts.

当构建一项服务时，开发者通常重用模式，组件，或者遗留下来的系统工件。

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