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茫茫太空,蕴藏着取之不尽的资源。载人航天的实现,给人类开发和利用外层空间资源提供了可能。尽管我国还没有实现载人航天,然而,多年来我国科学家利用
There is an inexhaustible resource in space. The realization of manned space provides possibilities for human development and utilization of outer space resources. Although China has not yet achieved manned spaceflight, it has been used by scientists in China for many years.