本文是国家自然科学基金课题“民航灾害的预警机理与方法研究”的深入和细化，是理论与实践相结合的一次深入。
Comparing to the national nature science fund issue-study on Forewarning Mechanism and Method of Civil Airlines Disaster, the thesis is deeper and more detailed.
研究课题在国家863计划项目和国家自然科学基金等项目的资助下完成，其工程应用背景是国家信息网格。
The project is supported by the Foundation of National 863 Plan of China and the National Natural Science Foundation of China, and applied to the National Information Grid of China (NIGC).
本课题得到了国家自然科学基金的支持。
The paper is supported by National Natural Science Foundation of China.
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