natural background level的意思|示意
自然基准
natural background level的网络常见释义
自然基准 ... high background level 高本底水平 natural background level 自然基准 allowable background level 容许本底水平 ; 释义容许本底水平 ...
natural background level相关短语
1、 natural radioactive background level 天然放射性本底
natural background level相关例句
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。
It is believed that such a level is of no significance to human health having regard to natural background levels.
令人信服的是，考虑到自然本底值，这样小的放射水平对人体健康是无关紧要的。
The results show that the radioactivity level of varied water bod-ies of the city was within normal natural background.
调查结果表明，上海市各类水体中天然放射性核素浓度属正常本底水平。
The results show that the radioactivity level of varied water bodies of the region was within normal natural background.
调查结果表明，宁夏回族自治区水体中天然放射性核素浓度属正常本底水平。