During the third step, a business Analysis Model is developed wherein each business use case realization is formalized in terms of two major UML artifacts.

在第三个步骤中，将开发业务分析模型，在其中，每个业务用例实现根据两个主要的UML工件进行形式化。

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This article introduces the reason of the oil well scaling, the principle of the chemical cleaning and protection, two step treatment program and method, analysis of the treatment efficient.

本文简要介绍了油田油井结垢的成因、化学清洗及防治的机理、两步法施工工艺方法、施工效果分析。

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After an analysis on the forming process of an automotive clarifier component, the production plan was determined and a two-step parting type of injection mould was developed.

通过对汽车净化器塑件的工艺分析，确定了塑件的生产方案并设计了二次分型注射模。

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