编者的话　今年 4月 2 4日对于我国航天界乃至全国各族人民来说 ,都是个值得纪念与回顾的日子。 30年前的这一天 ,我国自行研制的第一种运载火箭长征一号将自行研制的第一颗人造卫星东方红一号送上太空 ,在航天技术领域实现零的突破 ,开创了我国航天事业的新纪元。从此我国不仅 Editor’s Note April 24 this year, for the people of all nationalities in China’s space and even the entire nation, it is a memorable and retrospective day. On the day 30 years ago, China’s first long-march Launch Vehicle No. 1 on its own to launch its first satellite, Dongfanghong I, on its own space and achieve a zero breakthrough in the field of aerospace technology created a pioneering task for China’s space industry A new era. Since then, not only in China