【摘 要】
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As is well-known in both elastic mechanics and fluid mechanics.the plane problems aremore convenienl,than space problems.One of the canses is that there has bee
【机 构】
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MeteorologicalInstituteofAirforce,Nanjing
【基金项目】
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This is a comprehensive report at the Second National Symposium on Modern Mathematics and Mechanics,Project Supported by the Science Foundation of the Chinese Academy of Sciences