Time - fallout radiation loses its intensity fairly rapidly.
时间——放射性尘降物的辐射强度衰减很快。
On such a large time scale the radiation parameterization will become more and more significant.
在这种较大的时间尺度上，辐射的参数化将变得越来越重要。
But this is the first time they have heard about a high level of radiation in their own neighborhood.
但是，这是她们第一次听到自己住家地区有高含量放射线的消息。
We live with radiation, and most of the time it is harmless.
我们生活在辐射当中，而且大多数时间我们所受到的辐射是无害的。
There are three factors that minimize radiation exposure to your body: Time, Distance, and Shielding.
要最大程度减轻辐射伤害，三个因素至关重要：时间，距离和庇护所。
Three elements of Radiation, Time, Distance and Shielding.
辐射安全三要素，时间，距离，屏蔽。
At this time her husband joined her in her search for this unknown radiation.
这时她的丈夫和她一起寻找那种尚不为知的射线。
At this time her husband joined her in her search for this unknown radiation.
这时她的丈夫和她一起寻找那种尚不为知的射线。
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