In 1986 a reactor at Chernobyl in Ukraine became unstable, and apower surge inside the core led to two explosions that destroyed the reactorand blew its roof off.

• 1986年，乌克兰切尔诺贝利的一个反应堆先是不稳定，然后反应堆核心中的一股能量剧升引发了两次爆炸，摧毁了反应堆并掀翻了屋顶。