At one extreme, the scientists estimated fly ash radiation in individuals' bones at around 18 millirems (thousandths of a rem, a unit for measuring doses of ionizing radiation) a year.
在极端情况下，科学家估计浮尘的放射性在个人的骨骼中的积累可以达到每年18毫雷姆(千分之一雷姆，衡量电离辐射剂量的单位)。
At one extreme, the scientists estimated fly ash radiation in individuals' bones at around 18 millirems (thousandths of a rem, a unit for measuring doses of ionizing radiation) a year.
在极端情况下，科学家估计浮尘的放射性在个人的骨骼中的积累可以达到每年18毫雷姆(千分之一雷姆，衡量电离辐射剂量的单位)。
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