1974年：阿雷西博信号（Arecibo Message） 向可能存在的外星人发射的第一个信号就是阿雷西博射电望远镜信号，这段信号仅1679个字节信息，由两个质数--23和73--的乘积构成...
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“罗马穹顶”由于它独特的几何外形，将阿雷西博球形碟面反射来的信号聚焦到它内部的一个点上。
The Gregorian dome, due to its unique geometrical shape, focuses the signal reflected by Arecibo spherical dish one a single point inside the dome.
每个系统的收集信号的区域至少一百倍于阿雷西博望远镜。
The signal collecting area of each system would be at least100times greater than that of the arecibo telescope.
每个系统的收集信号的区域至少一百倍于阿雷西博望远镜。
The signal collecting area of each system would be at least 100 times greater than that of the arecibo telescope.
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