If ingested promptly after a nuclear accident, potassium iodide, in concentrated form, can help reduce the dose of radiation to the thyroid and thus the risk of cancer.

核事故发生后如及时地摄入浓缩的碘化钾，则可以减少甲状腺的放射量，从而降低癌症风险。

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The most frightening part of the nuclear accident was the radiation thatspewed from the reactor and then was carried by winds on its silent, deadlypath.

事故中最令人毛骨悚然的部分则是那些从反应堆中升腾起来的放射性尘埃，它们静静地乘着风，画出了一条致命的路线。

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The worst nuclear power accident in history took place in Chernobyl in 1986 when a reactor there exploded, killing tens of people instantly and exposing hundreds of thousands more to radiation.

历史上最严重的核电站事故发生在 1986 年的切尔诺贝利，一个反应堆发生了爆炸，当场炸死几十人，更有上万人受到辐射影响。

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Even if the nuclear accident is brought under control swiftly, and the release of radiation turns out not to be large enough to damage public health, this accident will have a huge impact on the nuclear industry, both inside and outside Japan.

ECONOMIST: Japan's hydra-headed disaster

There were no injuries and little release of radiation from that incident, which remains the worst commercial nuclear accident in U.S. history.

CNN: Pump triggers Three Mile Island reactor shutdown, NRC says