1) Internal Contamination
内污染
1.
The Action to Brain Protein Component Induced by Internal Contamination of Enriched Uranium.;
浓缩铀~(235)U内污染对脑内蛋白组分的作用
2.
The Comparison of Two Methods for Monitoring Internal Contamination of Radionuclides
放射性核素体内污染的两种检测方法比较
3.
Fifty three males once exposed to γ ray irrdiation or internal contamination,the dose range is 10～33 cGy,changes of eye lens are observed within a period of 22～31 a after irradiation exposure.
报告了 53名男性受到一次剂量为 10～ 33cGyγ射线外照射或内污染后 2 2～ 31a间眼晶体的变化 ,发现 4 9例晶体混浊 ,未发现放射性白内障。
2) internal pollution sources
内源污染
1.
The study on the causes of eutrophication shows that internal pollution sources and external pollution sources are the main causes for the eutrophication .
对富营养化成因进行分析,结果表明内源污染和外源污染是造成洋河水库富营养化的主要原因,其中淀粉废水和地表径流是主要的外污染源。
3) indoor pollution
室内污染
1.
Through the supervision of five typical families of Xinzhou, and based on its testing results,it elaborates the actuality of indoor air pollution,main source,damage of pollution as well as the supervising methods,so as to bring forward some concrete methods of protecting indoor pollution and reducing indoor pollution.
通过对五个典型的忻州市家庭居室进行监测,以实验结果为分析依据,阐述了室内空气污染的现状、主要来源、污染物的危害以及监测方法,从而提出了一些防治室内污染的具体措施,以减少室内空气污染。
2.
As the economic development and the life standard improvement, indoor pollution has been paid more attention.
随着经济发展和生活水平的提高，室内污染也越来越受到人们的关注。
3.
The source and harms of indoor pollution are summarized,the incorrect recognition of indoor pollution is clarified,and control methods for indoor pollution are introduced.
本文综述了室内污染的来源、危害,澄清对室内污染认识的误区,介绍了室内空气污染的控制方法。
4) indoor air pollution
室内污染
1.
Because the indoor air pollution problem is serious more and more, this paper surveyed the complexion of the indoor air pollution, and educed that the contents of SO2、NO2 were higher than the others in the lampblack pollution, and also the contents of SO2、formaldehyde were higher in the tobacco smog pollution, while the contents of formaldehyde were higher in the indoor decoration pollution.
本文针对室内污染越来越严重的情况对室内污染进行了监测,得出油烟污染中SO2、NO2 含量多,烟草烟雾污染中SO2、HCHO 含量高,室内装饰污染中HCHO含量最高。
6) endogenous pollution
内源污染
1.
After comprehensive harnessing the outside pollution had been effectively controlled,the endogenous pollution which was caused by polluted sediment would be become main nutritional load.
经综合治理其外源污染得到有效控制后,内源污染可能成为湖泊营养物的主要负荷。
2.
Dredging bottom sediment which is universally used,is an important measure to improve the condition of flood discharge、to increase the volume of lakes、to clean out an endogenous pollution、to meliorate water environment and to renew a water ecosystem.
污染物质随泥沙沉积,构成了江河湖库的内源污染。
补充资料：-戊内酯、3-甲基丁内酯、咖吗-戊内酯
CAS: 108-29-2
分子式: C5H8O2
分子质量: 100.12
沸点: 207-208℃
熔点: -31-208℃
中文名称: 4-戊内酯、γ-戊内酯、3-甲基丁内酯、咖吗-戊内酯
英文名称: dihydro-5-methyl-2(3H)-Furanone、dihydro-5-methyl-2(3h)-furanon、4-hydroxypentanoic acid lactone、4-hydroxyvaleric acid lactone、4-methyl-gamma-butyrolactone、gamma-methyl-gamma-butyrolactone、gamma-valerolakton
性质描述: 无色至微黄色液体。凝固点-31℃，沸点205-206.5℃，83-84℃（1.73kPa），相对密度（25/25℃）1.0578，折光率（nD25）1.4301。能与水、许多有机溶剂、树脂和蜡等混溶。10%水溶液的pH为4.2。
生产方法: 由不饱和羧酸通过闭环反应来合成，例如乙酰乙酸与硫酸共热，或乙酰丙酸在镍、铜等催化剂存在下加氢。
用途: γ-戊内酯有较强的反应能力，可用作树脂溶剂及各种有关化合物的中间体。也用作润滑剂、增塑剂、非离子型表面活性剂的胶凝剂、加铅汽油的内酯类添加剂，用于纤维素酯和合成纤维的染色。γ-戊内酯具有香兰素和椰子香味。我国GB2760-86规定为允许使用的食用香料。主要用以配制桃、椰子、香草等型香精。
分子式: C5H8O2
分子质量: 100.12
沸点: 207-208℃
熔点: -31-208℃
中文名称: 4-戊内酯、γ-戊内酯、3-甲基丁内酯、咖吗-戊内酯
英文名称: dihydro-5-methyl-2(3H)-Furanone、dihydro-5-methyl-2(3h)-furanon、4-hydroxypentanoic acid lactone、4-hydroxyvaleric acid lactone、4-methyl-gamma-butyrolactone、gamma-methyl-gamma-butyrolactone、gamma-valerolakton
性质描述: 无色至微黄色液体。凝固点-31℃，沸点205-206.5℃，83-84℃（1.73kPa），相对密度（25/25℃）1.0578，折光率（nD25）1.4301。能与水、许多有机溶剂、树脂和蜡等混溶。10%水溶液的pH为4.2。
生产方法: 由不饱和羧酸通过闭环反应来合成，例如乙酰乙酸与硫酸共热，或乙酰丙酸在镍、铜等催化剂存在下加氢。
用途: γ-戊内酯有较强的反应能力，可用作树脂溶剂及各种有关化合物的中间体。也用作润滑剂、增塑剂、非离子型表面活性剂的胶凝剂、加铅汽油的内酯类添加剂，用于纤维素酯和合成纤维的染色。γ-戊内酯具有香兰素和椰子香味。我国GB2760-86规定为允许使用的食用香料。主要用以配制桃、椰子、香草等型香精。
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