Where did that come from? Well, it was the chemical reaction of the explosion.
那它们来自何处，这是爆炸的化学反应。
2
Keep in mind, this is not a nuclear reaction, but a simple chemical explosion that often (as in this case) results in little or no radioactive material being leaked into the outside world.
注意，这并不涉及核反应，只是简单的化学爆炸，它基本不会导致放射性物质泄漏出来。
3
An atomic explosion is created by setting off a chain reaction.