1 前言 □□中国是继苏联/俄罗斯和美国之后世界上第3个自主发展载人航天技术的国家。 1967～1968年，中国就开始研究载人飞船技术，并进行了一种载人飞船的总体方案论证。该飞船计划虽在以后的七八年间取得不少预研成果，但终因当时条件不成熟和国家决定把航天技术领域的力量 1 Foreword □ □ China is the third country in the world to independently develop manned space technology following the Soviet Union / Russia and the United States. From 1967 to 1968, China began to study the technology of manned spacecraft and carried out a general plan demonstration of manned spacecraft. Although the plan of the spacecraft made quite a number of pre-research results in the next seven or eight years, the final result was due to the immature conditions at that time and the decision of the state to shift the force in space technology