The large amount of cooling water that has been used is sufficient to take up that heat. Because it is a lot of water, the core does not produce sufficient heat any more to produce any significant pressure.
太多细节了,专家不在现场也不可能清楚。不过对外人来说,第三层保护能实现就够了。
另外他们说了没有现在排的蒸汽有什么放射性物质?