A SETI subcommittee within the International Academy of Astronautics (IAA), a scientific lobby group, even fashioned a protocol on how to respond if a signal from aliens is received.
国际宇宙航行学会的对搜寻地外文明计划中一支小组委员会(一支科学游说小团体)，甚至起草了一份关于如果人类受到了来自外星人的信号，我们将如何应对的协议。
A SETI subcommittee within the International Academy of Astronautics (IAA), a scientific lobby group, even fashioned a protocol on how to respond if a signal from aliens is received.
国际宇宙航行学会的对搜寻地外文明计划中一支小组委员会(一支科学游说小团体)，甚至起草了一份关于如果人类受到了来自外星人的信号，我们将如何应对的协议。
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