The J2EE architecture is based on a four-tier layer model that characterizes a J2EE-compliant enterprise application.
J2EE体系结构是以一个4层模型为基础而建立的，该模型刻划了J2EE兼容的企业应用程序的特征。
Then it expounds the J2EE standard used in developing enterprise level application system based on multi-layer software architecture and related technology contained in it.
然后介绍了基于多层软件体系结构的企业级应用系统开发规范J2EE，对该规范的相关技术进行了说明。
CORBA is excellent in isomerous environments and becomes an important technique for enterprise multi-layer application system.
CORBA在异构环境下极具优势，已成为开发企业级多层应用系统的主要技术之一。
J2EE offers calculation model and running environment of a enterprise layer, is used for developing and disposing the application of the multi-layer system structure.
J2EE提供了一个企业级的计算模型和运行环境，用于开发和部署多层体系结构的应用。
J2EE offers calculation model and running environment of a enterprise layer, is used for developing and disposing the application of the multi-layer system structure.
J2EE提供了一个企业级的计算模型和运行环境，用于开发和部署多层体系结构的应用。
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