three layer construction meaning in Chinese

三层结构

First , gis and mapx component techniques and the distribute construction are introduced in this paper , by the comparison analysis mapx component is used as the system the development terrace of gis , and basing on the environmental consideration in network again , the system adopted the c / s / s of three layers construction , which can satisfy the application in transportation construction management , and the web service distribute technique is used in the tekecommunications realization of this system
首先介绍了gis及其mapx组件技术和分布式体系结构，通过比较分析确定采用mapx组件作为系统的gis开发平台，又基于网络环境的考虑，系统采用了c / s / s的三层体系结构，它能够满足在交通建设管理中的应用要求，并以webservice分布式技术作为系统远程数据访问的实现手段。