Objective To estimate the excess relative risk for solid cancer associated with chronically exposure to high-background natural radiation in Yangjiang area of China.
目的估算阳江高本底辐射慢性照射可能导致的实体癌超额相对危险。
With continued exposure to chronically present ambient odors, individuals' perception of odor intensity is greatly reduced.
若长期暴露于当前环境的气味中，个体对气味强度的感知会大大减弱。
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