Even a brief exposure to radiation is very dangerous.

的辐射，也是很危险的。

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Food is irradiated by brief exposure to X-rays, gamma rays or an electron beam.

食品通过短暂地暴露在x射线、γ射线或电子束来进行辐照杀菌。

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The report also found even brief exposure to second-hand smoke 'could trigger acute cardiac events such as heart attack.'

这份报告也指出，即使短暂吸入二手烟也可能引发严重的心脏疾病，诸如急性心脏病发。

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So, these two facts taken together, thin slices and the power of first impressions, means that just by a brief exposure to somebody it shapes so much of how you're going to think about them in the future.

综合考虑这两方面，薄片效应和第一印象的影响，意味着只需要短暂地接触对方,就能决定,你以后对他们有什么看法。

耶鲁公开课 - 心理学导论课程节选

" The American Medical Association's guide for physicians says studies show "a clear link between brief exposure to violence on TV or movies and increases in aggressive and even physically violent behavior in young persons.

WSJ: Campbell Brown: The President Gives Hollywood a Pass on Violence

Brief exposure to high levels of PCBs and dioxins may cause skin lesions and affect the liver (the tolerated daily intake for dioxin is about 1 picogram - one trillionth of a gram - per kg body weight).

CNN: THE GREAT DIOXIN SCARE