average background造句

"average background"是什么意思

造句与例句手机版

It is therefore completely impossible to avoid ionising radiation altogether . the average background radiation as about 2 msv per year
换言之，我们不可能完全避免电离辐射，每年接触到的本底辐照量平均为两毫西韦特单位。
It's difficult to see average background in a sentence. 用average background造句挺难的

相邻词汇

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