【参考译文】<br> All the systems and equipment of the manned spaceship must undergo reliability design, and the key units must have backup systems. The spaceship must pass ground test and simulated flight test under strict control of environments so as to avoid hidden perils. The design of the spaceship must also allow the astronauts to carry out maintenance and replacement in case of equipment failure.<br> From a long-term point of view, it is a historic inevitability for man to venture into the outer space and explore the universe in depth and in width. The development and application of manned spaceflight technology will have great influence on a country’s politics, military affairs, economy and science and technology.
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