1) concentrations ratios of indoor /outdoor
室内外浓度比
2) ratio of indoor/outdoor BTEX concentrations
室内外BTEX浓度比
3) indoor/outdoor particle concentration ratio (I/O)
室内、外颗粒物浓度比值(I/O值)
4) ratio of CO 2 concentration in the intercellular space of leaves to that on the atmosphere
植物内外CO_2浓度比
5) indoor radon concentration
室内氡浓度
1.
According to the literature concerned in China,the indoor radon concentration has been increasing significantly during the past two decades and it seems to be increasing in tendency.
通过对我国室内氡研究的相关文献资料进行的汇总和分析,表明近20年来我国室内氡浓度明显增高,并有继续增高的趋势,讨论了我国室内氡浓度控制标准及相关研究进展,并在此基础上提出了我国室内氡在环境毒理学、污染控制、标准体系方面研究的建议。
2.
This article Select 33 indoor air sampling points, 46 soil sampling points for observation indoor radon migration mechanism, influencing factors, prediction and control measure of indoor radon hazards, drawing the following conclusions:(1) Jiaozuo city annual average indoor radon concentration is 62.
(2)地质断层对室内氡浓度有一定影响,地质断层区域带室内平均氡浓度113。
3.
Recent studies reveal that indoor radon concentrations have increased in some large and medium-sized cities in China, particularly in Shanghai.
近些年的研究表明国内一些大中城市居室内氡浓度呈上升趋势,上海尤为明显。
6) Indoor concentration of carbon dioxide
室内CO2浓度
补充资料：室内
1.谓祖庙之内。室，指太室。 2.家中。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条