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由中国航空学会、中国力学学会、中国机械工程学会、中国宇航学会、中国振动工程学会联合举办的“第四届全国振动理论与应用学术会议”于1990年5月5日～8日在郑州举行。开幕式上中国航空学会理事长、本届学术会议组委会主席、西北工业大学名誉校长季文美教授致开幕词。河南省科委主任陈义初、河南省科协副主席蒋家彰、郑州工学院副院长沈宁福教授等到会祝贺。
The Fourth National Conference on Theory and Applications of Vibration, jointly organized by Chinese Society of Aeronautics, Chinese Society of Mechanics, Chinese Society of Mechanical Engineering, China Astronautics Society and China Society for Vibration Engineering was held in Zhengzhou from May 5-8, 1990 . At the opening ceremony, Chairman of China Association of Aeronautics, Chairman of the Organizing Committee for this Conference and Professor Ji Wenmei, Honorary President of Northwestern Polytechnical University, delivered the opening speech. Chen Yichu, director of Henan Science and Technology Commission, Jiang Jiazhang, vice chairman of Henan CAST, and Professor Shen Ningfu, vice president of Zhengzhou Institute of Technology, will wait until congratulations.