In the end of this paper, the four-layer architecture is given out and the function realization and information communication between layers are studied and analyzed.
本文在完成输煤监控监督系统体系结构设计的基础上，对各层之间的功能实现和信息交互做了详细的分析和研究。
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。
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。
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