So what is an acceptable level of radiation?

那么可接受的辐射量是多少？

youdao

There is no level of radiation that is completely safe.

不存在任何绝对安全的辐射能级。

youdao

The level of radiation decreases dramatically as distance from the site increases.

随着与出事地点之间的距离增加，辐射程度显著降低。

youdao

In any CT scan, the radiologist determines the required level of radiation.

VOA: standard.2010.01.30

So what we'll do is this problem here, which is let's calculate out what the wavelength of radiation n would be emitted from a hydrogen atom if we start at the n equals 3 level and we go down to the n equals 2 level.

我们来做这个问题,让我们来计算一下,从n等于3到,等于2能级氢原子辐射的波长是多少。

麻省理工公开课 - 化学原理课程节选

The level of radiation in the seawater is 4, 385 times higher than the legal limit.

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Later Tuesday the level of radiation fell back down again to 1 rem or less.

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"It is likely that the level of radiation increased sharply due to a fire at Unit 4, " Edano said.

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