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据中国科学院遗传研究所副研究员李金国介绍,我国从1987年至今,利用卫星和高空气球,搭载了多种作物数百个品种的种子和无性学
According to Li Jinguo, an associate researcher at the Institute of Genetics of Chinese Academy of Sciences, from 1987 till now, China has used satellites and high-altitude balloons to carry seeds and clones of hundreds of varieties of crops