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- Rainwater with light pollution level is easy to purify. 雨水作为一种自然资源,污染轻,处理容易。
- Studies on dynamics of microcystin pollution level in municipal water supplies. 城市供水藻毒素污染水平的动态研究。
- Insulator's pollution level: Normal class is 0, anti-pollution is III level. 绝缘子污秽等级:普通级为0级;防污型为III级;
- Pollution levels fall during nightime. 夜晚的污染程度则会下降。
- Compared with the previous year,the order of the pollution level remained same and the pollution extent is quite close. 与上年相比,污染轻重顺序未变,污染程度相近。
- It shownthat the pollution level of Fen-river Taiyuan section was strong medium and Jinyang lake wasslight. 结果表明:汾河太原段的水质基本属于强中污染,晋阳湖水质属轻污染。
- The organic pollution level is as follows(from high to low): Dasha River,campus pond,reservoir A,and reservoir B. 有机污染的程度由高到低依次为:大沙河、校园池塘、甲水库、乙水库。
- Compared with the previous year, the order of the pollution level remained same and the pollution extent is quite close. 与上年相比,污染轻重顺序未变,污染程度相近。
- The total creepage distance of an insulator shall be not less creepage distance requested by the pollution level for the site. 绝缘子总的爬距应等于或大于由该地区污秽等级所要求的爬距。
- The result showed that phytoplankton,bacteria,ammonia nitrogen and nitrite nitrogen have different pollution level in different water. 通过分析,浮游植物、细菌、非离子氨和亚硝酸盐氮等因子在不同的水体中表现出不同程度的污染。
- Radioactive monitoring results in river receiving waste of uraniumelement plant are reported.The pollution level and monitoring method are discussed. 本文报告了铀元件厂排污河流的放射性监测结果,并就污染水平和监测方法进行讨论。
- PP membrane, PVDF membrane and ceramic membrane are compared in air permeability, mass transfer coefficient, pollution level and price. 从膜的透气量、传质系数、膜污染程度和价格四方面,对聚丙烯(PP)、聚偏氟乙烯(PVDF)和陶瓷三种常用微孔膜的性能进行了比较和评估。
- They make regular checks on the surrounding area for pollution levels. 他们对周围地区的污染水平进行定期检测。
- Thankfully, the air pollution levels were not especially bad yesterday. 幸好昨天的空气污染水平不是特别严重。
- Introducing pollution with disutility to utility function in a stochastic economic growth rate and pollution level by using stochastic optimization method. 摘要在一个具有随机污染消除技术的随机增长模型中,把带来负效用的污染引入效用函数。
- Many laws require that pollution levels not exceed those found to be harmful to people. 许多法律要求污染水平不能超过那些已经发现了的对人们造成危害的水平。
- The OC/EC ratio in nighttime ranging from 2.4 to 2.7 is higher than that in daytime ranging from 1.9 to 2.0. The organic pollution level and OC/EC ratio in Beijing is higher than other observation results in Japan and USA. OC/EC比值在夜间(2.;4-2
- The amount of sickness in this district demonstrates that the water pollution levels are too high. 这地区疾病之多说明这里水污染太严重了。
- The long-term investigation concerning inhalable particulates has been done in several countres, and was found that the pollution level of inhalable particulates did relate to the mortality. 同时,详细阐述了国外对可吸入颗粒物的研究现状,确认了可吸入颗粒物污染程度与死亡率增加之间的关系。
- POllution levels tend to be at their lowest during spring and autumn when winds are freshest. 春秋天时候,风带来新鲜清新的空气。因此,污染程度也最低。