从这个意义上说，SETI是纯科学系统发展的又一个重要推动力，它不断拓展我们的知识面。
In this sense, SETI is another cog in the machinery of pure science which is continually pushing out the horizon of our knowledge.
从这个意义上说，SETI是纯科学系统发展的又一个重要推动力，它不断拓展我们的知识面。
In this sense, SETI is another cog in the machinery of pure science which is continually pushing out the horizon of our knowledge.
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