【摘要】 本文综述了 2 0世纪世界航天器的发展。内容包括科学探测、地球观测和军事应用的地球卫星、地球轨道和登月的载人飞船。对人类长期在轨的空间站、运载工具和太阳系探测等也简要地进行了摘述更多还原

【Abstract】 The development of spacecrafts in the 20th century is reviewed. Topics included are earth satellites for scientific exploration, earth observations and military applications. Manned spaceflights including space-ships for orbital flight and lunar exploration are described. Several generations of space stations for extended time of human existence in space, launch vehicle technology, solar system explorations are also briefly reviewed.更多还原