double extragalactic radio source

例句：

1. 1. The double extragalactic radio source is believed to be the most powerful in the galaxy.
   这个双超星系射电源被认为是银河系中最强大的。
2. 2. Astronomers have been searching for this type of radio source for decades.
   天文学家们已经寻找这种射电源几十年了。
3. 3. This discovery could revolutionize our understanding of the universe's structure and evolution.
   这一发现可能会彻底改变我们对宇宙结构及其演变的理解。