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一、引言1984年4月12日哥伦比亚号航天飞机轨道飞行器飞行成功,改变了过去只靠一次使用的运载工具发射空间飞行器的历史,向人类提供了一种可在十年工作寿命期间,重复使用百次的经济方便的空间运输工具。航天飞机的起飞象火箭,在轨道上工作象宇宙飞船,着陆象飞机。它不仅可满足空间探索、科研、军事任务要求,还可从事很多有用的生产性的工作,对空间事业的发展将起很大的推动作用。
I. INTRODUCTION The successful flight of the space shuttle Columbia Columbia on April 12, 1984, changed the history of launching space vehicles in the past by means of single-use vehicles and provided humans with a way to re-use spacecraft over a 10-year working life One hundred times economical and convenient space transportation tools. The space shuttle takes off like a rocket and works like a spaceship on orbit, landing like an airplane. It can not only meet the requirements of space exploration, scientific research and military tasks, but also engage in many useful and productive work, which will greatly promote the development of space undertakings.