Radioactive steam will still bubble up to the top of the water in the containment vessel, but will be harder to vent as the systems for doing so in an orderly manner are now underwater.
More heat means more steam and less water in the reactor vessel.
在反应炉内，更多的热量将会生成更多的蒸汽，并使水越变越少。
3
In reactor 1, and later in reactor 3, steam contaminated with some radioactive elements was allowed out of the pressure vessel and into the larger containment vessel that surrounds it.