当反应堆的核心铀和锆合金的燃料棒融化时，它需要2,200摄氏度的高温，同时释放大量辐射微粒。

This is when the uranium and the zircalloy fuel rods at the heart of the reactor melt. It occurs at temperatures above 2,200c, releasing highly radioactive particles.

youdao

当反应堆的核心铀和锆合金的燃料棒融化时，它需要2,200摄氏度的高温，同时释放大量辐射微粒。

This is when the uranium and the zircalloy fuel rods at the heart of the reactor melt. It occurs at temperatures above 2, 200c, releasing highly radioactive particles.

youdao