In this article, you learned how using abstraction allows for clearer and easier presentation of a complex design, speeding the overall development process.

在本文中，您了解了如何使用抽象为复杂的设计实现更加清楚、更加容易的表达，从而加速整体开发过程。

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As shown in Figure 2, the business services of a multi-tenant application must be designed to receive and process requests originating from different subscribers by way of a presentation layer.

如图2中所示，多承租者应用程序的业务服务必须设计为通过表示层接收和处理来自不同订阅者的请求。

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We customized the class NN in our class NN2, but our changes only modify the presentation and output of the process, nothing algorithmic. The basic code looks like.

用它的模型解决问题真是难以置信的简单，在我们的类NN 2里定制了一个类NN，不过我们的改变只是调整了表达方式和整个过程的输出，并没有涉及到算法。

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The food trucks are currently racing to get up and running, having already undergone a rigorous testing process that included a presentation of their business plan, a proposed theme and menu, and a cook-off.

BBC: Food trucks are racing towards Sydney

With this API in place we'll be able to decouple the presentation and data layers of the application and build a new, streamlined signature process.

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And while I focused on the presentation they liaised with visitors online, explained to them the process, answered questions through chat, trouble-shooted problems and tested out things in advance.

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