本文首先说明了论文的选题背景、研究目的与意义、研究的基本思路和策略、研究的主要内容、研究的特色和不足等。
The first chapter mainly includes the background, researching purpose, meaning, basic thought, methods, primary coverage, conclusion, the character and the defects.
本文阐述了SIG的概念、关键技术和中心策略，并对当前的信息集成进行了探讨，提出了基于SIG服务的空间数据集成的基本思路。
This paper presents the concept, key issues and strategy of SIG, discusses the status of data integration, and presents an approach to integrating the spatial data based on the SIG services.
同时，结合多个案例进行了个案分析，探讨了学案设计的基本思路，以及教学目标、课堂引入、教学过程等的具体处理方式和策略。
The paper carries out experimental researches in a small range into the strategies and specific ways of giving lessons in a clear way with the help of study plans.
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