Local residents said it was as if there had been a nuclear explosion.

当地居民说好像发生过核爆炸。

In order to make a nuclear explosion, the critical mass must come together within a fraction of a millionth of a second.

为促成一次核爆炸，临界质量必须在一百万分之一秒内聚集在一起。

Radiation from a nuclear explosion can kill.

核爆炸散发的放射物是致命的。

Notice how the trailer even includes a nuclear explosion.

注意预告片甚至还加上了一段核爆炸。

A nuclear explosion destroys everything in an instant.

核爆会立即摧毁一切。