Previous releases of radioactive iodine and caesium had shown that material from the core of at least one reactor has been released.
之前放射性的碘、铯的释放表明至少一个反应堆堆芯已被释放。
2
The level of radioactive Iodine-134 in water in the basement of a turbine building adjoining the plant's Number-2 reactor spiked to more than 10 million times that of normal conditions.
福岛核电站2号反应堆汽轮机房地下室积水的放射性碘-134的水平急剧上升，达到正常标准的1千万倍。
3
Radioactive iodine can be accidentally released from a nuclear reactor.