太空中相继升起近80颗中国的人造地球卫星——庆贺中国航天事业创建50周年

About 80 Chinese Artificial Earth Satellites Were Launched One after another into the Space——Celebrate the 50^(th) Anniversary of the Founding of the Chinese Space Cause

回顾了中国自主发展人造地球卫星的历程,以此庆贺中国航天事业创建50周年。

On the eve of the 50th anniversary of the founding of the Chinese Space Cause, the history of developing artificial earth satellite in China is reviewed.