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1991年,我校共有6项科技成果获得省、部(委)级以上科技奖励,其中地理系杨思植、程千里、张伯祉等与榆林地区治沙所、榆林地区环境监测站合作完成的“陕西榆林地区毛乌素沙地环境改善研究”获得1991年度国家科技进步奖三等奖、1990年度陕西省科技进步奖二等奖;应用声学研究所董彦武、仝杰、孙永臣、赵恒元完成的“超声传播参量与媒质特性的关系研究”、李援国、赵恒元与西安飞机制造公司总装厂合作完成的“铝电
In 1991, a total of six scientific and technological achievements of our school were rewarded with science and technology awards at the provincial and ministerial level. Among them, Geography Department Yang Sizhi, Cheng Qianli and Zhang Bozhi cooperated with Yulin Area Environmental Monitoring Station and Yulin Area Environmental Monitoring Station to complete the “Shaanxi Yulin Research on Environmental Improvement in the Mu Us Sandy Land ”won the third prize of National Science and Technology Progress Award in 1991 and the second prize of Shaanxi Provincial Science and Technology Progress Award in 1990; the“ Ultrasonic Propagation Parameters and Mediums ”by Dong Yanwu, Tong Jie, Sun Yongchen and Zhao Hengyuan, Characteristics of the relationship between research, “Li Aiguo, Zhao Heng Yuan and Xi’an Aircraft Manufacturing Company assembly plant to complete the” aluminum