Step 2: Rich Domain Objects with on-demand dependency injection.

第二步：按需进行依赖注入的富领域对象。

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For an entity to be considered a rich domain object it should not only contain state but also be able to call business services.

一个实体若想成为富领域对象不仅要包含状态，还得能调用业务服务。

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Secondly, combining the features of the rich domain model, and then the four model-based development framework is determined.

然后，结合领域模型的充血模式特点，确定出基于充血模型的四层开发架构。

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Second is a vendor neutrality that can deftly neutralize any reluctant (or recalcitrant) healthcare IT vendor, and third is a rich history of domain expertise specifically around industrial-strength network security, identity management and authentication (at scale).

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The millionaires-only club of American politics--once the small domain of names like Roosevelt, Rockefeller and Kennedy--has expanded to include all sorts of Regular Rich Guys.

CNN: The New Rich Man's Club