保加利亚国家空间研究所科学家说，破译外星人发送给他们的一组复杂符号的工作正在进行中。
Work on deciphering a complex set of symbols sent to them is underway, scientists from the country's Space Research Institute said.
使用锂原子，科学家重建了这个古老的数学符号，它早已被视作二世纪阿富汗的佛教艺术符号。
Using lithium atoms, scientists recreated an ancient mathematical symbol that had been seen as far back as the second century in Afghan Buddhist art.
群体规则是由克雷格·雷诺兹发现的。 他是研究象征符号的计算机科学家，制图软件制造商。
The flocking rules were discovered by Craig Reynolds, a computer scientist working at Symbolics, a graphics hardware manufacturer.
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