CORBA的构件体系结构包含四个彼此一致的对象模型：抽象构件模型（Abstract Component Model）、打包模型（Packaging Model）、配置模型（Deployment Model）和容器模型（Container Model）。
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A component model must be abstract and language neutral, because its role is to hide technology details and differences.
组件模型必须是抽象的，并且与语言无关，因为它的作用在于隐藏技术细节和差异。
The first level consists of the performance object, which is a unit that can model a physical device or abstract component in a system.
第一级包括性能对象，它是可以为物理设备建模，或者抽象系统中组件的单元。
Abstract: : the propeller is in the model airplane one of most important components, is the model ship airplane obtains the power the key component.
摘要：螺旋桨是航空模型中最重要的零件之一，是航模飞机获得动力的关键部件。
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