在安全壳内，放射性蒸汽将会持续形成气泡并上升到水面顶部，但是放压工作却更困难了，因为系统在正常方式下的放压操作现在却要在水下进行。
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.
正常情况下，燃料棒应当沉没在水中，如果水面降得太低，燃料棒将会暴露在蒸汽和其他气体中。
If the water level drops far enough, the fuel rods of the reactor proper, which are meant to stay submerged, will be exposed to the steam and other gases.
堆芯的一半都暴露在水面上，主回路中水的辐射水平达到正常标准的350倍。
Half of the core is now uncovered, and the radioactivity of the water in the primary loop is 350 times its normal level.
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