英语词汇average background radiation怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

1
By scientific measures, the average American gets 620 millirems of radiation each year, half from background exposure, and that number needs to reach 100,000 to be worrisome.
科学测量结果显示，普通美国人每年受到的辐射为620毫仑目，其中一半属于天然本底辐射，而低于100,000毫仑目的辐射完全不需要担心。
2
This is called background radiation and levels vary from place to place, though the average dose is fairly constant.
辐射强度会因地点而异，但平均辐射量实则大致相同。

单词	average background radiation
释义	average background radiation 简明释义平均本底辐射专业释义 1 医药科学平均本底辐射双语例句 1 By scientific measures, the average American gets 620 millirems of radiation each year, half from background exposure, and that number needs to reach 100,000 to be worrisome. 科学测量结果显示，普通美国人每年受到的辐射为620毫仑目，其中一半属于天然本底辐射，而低于100,000毫仑目的辐射完全不需要担心。 2 This is called background radiation and levels vary from place to place, though the average dose is fairly constant. 辐射强度会因地点而异，但平均辐射量实则大致相同。
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