载人航天器的出现,为人类出入太空架起了“天桥”。迄今为止,载人航天器已有飞船、空间站和航天飞机3种形式,其中飞船出现最早、技术也相时简单和成熟。它不仅能够保障宇航员执行空间科研、试验等任务,还是与空间站相配套的运输工具。载人飞船为其他载人航天器的研制与运行提供了经验和技术基础。 The emergence of manned spacecraft for human access to space set up “footbridge ”. So far, manned spacecraft has three forms of spacecraft, space station and space shuttle, of which the spacecraft first appeared, the technology is also relatively simple and sophisticated. It can not only ensure astronauts to carry out space research, testing and other tasks, or with the space station supporting the transport. Manned spacecraft provided the experience and technical foundation for the development and operation of other manned spacecraft.