radioactive dry fall out 放射性干沉降物
fall-out radioactive materials 放射性沉积物
radioactive dry fall-out 放射性干落下灰
One marker of ice loss on Kilimanjaro was the radioactive signature of fall-out from atomic tests carried out in the early 1950s.
乞力马扎罗山峰冰雪消融的标志是在20世纪50年代早期开展的原子能测试产生辐射尘的放射性特征。
Concern about radioactive fall-out from the nuclear power stations that led to thousands being evacuated has added to the scale of the disaster, says Perwaiz.
帕瓦茨说，由于担心核电站的辐射泄漏而导致几千人被疏散，使得这次灾难规模更大。
Most of the radioactive particles are expected to fall out over the western Pacific Ocean. Quantities will be so diffuse at that point that they're not likely to make fish there unsafe to eat.
可以预计，大部分的放射性尘埃会落到西太平洋地区，而且数量很分散，对食用鱼类也没有影响，可放心食用。
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