Preface Outer space is the common wealth of mankind.Exploration,development and utilization of outer space are an unremitting pursuit of mankind.Space activities around the world have been flourishing.Leading space-faring countries have formulated or modified their development strategies,plans and goals in this sphere.The position and role of space activities are becoming increasingly salient for each active country's overall development strategy,and their influence on human civilization and social progress is increasing.The Chinese Govemment makes the space industry an important part of the nation's overall development strategy,and adheres to exploration and utilization of outer space for peaceful purposes.Over the past few years,China's space industry has developed rapidly and China ranks among the world's leading countries in certain major areas of space technology.Space activities play an increasingly important role in China's economic and social development.前言外层空间是人类共同的财富,探索外层空间是人类不懈的追求.当前,世界航天活动呈现蓬勃发展的景象,主要航天国家相继制定或调整航天发展战略、发展规划和发展目标,航天事业在国家整体发展战略中的地位与作用日益突出,航天活动对人类文明和社会进步的影响进一步增强.中国政府把发展航天事业作为国家整体发展战略的重要组成部分,始终坚持为了和平目的探索和利用外层空间.近年来,中国航天事业发展迅速,在若干重要技术领域跻身世界先进行列.航天活动在中国经济建设和社会发展中发挥着越来越重要的作用.
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