| 释义 |
background level
释义
背景水平：指在某一特定环境或领域中的基准水平或常态水平。
例句
1·The new safety level is about 100 times higher than the background level of dust at ground level.
新的安全水平比地平面灰尘背景水平高出一百倍，也比从火山爆发以来测试飞机在英国上空所测的数据要高很多。
2·Radiation doses to humans may be characterized as low-level if they are comparable to natural background levels.
对人类的放射剂量如果与自然环境辐射水平相比属低水平。
3·Because rice accumulates arsenic, he says, even the background level "is a problem for people who eat much rice in their diet."
尽管稻米中积累的砷含量较低，但史蒂夫.麦格拉思认为“人们在日常膳食中如果摄入过多的稻米，会对身体产生危害。”
同义词
基值电流；背景值
background valuebackground current
|