GIS中的空间参照系统是GIS平台中的重要组成部分，内容包括各种坐标系统的转换和地图投影，故也称为投影变换系统。
As an important part of GIS platform, spatial reference system includes coordinate transformation and map projection, also named as map projection transformation system.
本文中，我们参照LTE的技术规范以及3GPP RAN4工作组的提案搭建了一个链路级仿真器，然后以此作为仿真平台来验证所提出的算法。
We refer to LTE's specifications and proposals of 3GPP RAN4 WG to construct a link level simulator. And then use it as the platform to validate the proposed algorithms.
本文参照调度自动化系统的设计思想，提出了动态记录与故障分析平台的设计概念。
According the design philosophy of the dispatch automation system, a conceptual design on platform of dynamic recording and fault analysis platform has been proposed in this paper.
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