查询词典 air contamination

By the early days of 20 century, the proportion of negative ion in the aerosphere is 2 to 1, however basis on the recently data, the proportion just opposite become 1 to 2, this is attributed by the pollution of the air, water and other kinds of contamination.

这都是归因於人为因素对大自然迫害所致，像是空气污染、水源污染以及其他的有害污染之故。

Air temperatures;Atmosphere;Biological;Chemical;Classification;Classification systems;Climate;Contamination;Definition;Definitions;Degree of sharpness;Electric appliances;Electrical components;Electrical engineering;Electrical equipment;Electrically-operated devices;Electronic equipment and components;Environment;Environmental and safety engineering;Environmental condition;Environmental conditions;Environmental effects;Environmental factor of influence;Environmental testing;Humidity;Influence quantity;Limits;Long-time storage;Mechanic;Open air climate;Parameters;Preferred sizes;Preferred value;Temperature;Testing;Weathering

中文主题词生物的；参数；环境影响；锐度；露天气候；优先尺寸；影响的环境因素；优选值；长时存储；影响量；电气元件；空气温度；化学的；气候；污染；分类系统；湿度；环境条件；环境条件；极限；力学；电子设备及元件；电驱动装置；环境试验；电气设备；定义；温度；环境与安全工程；风化；分类；电气工程；大气；电气器具；试验；环境

Objective To survey the air microbe contamination status of the subway stations in Shenzhen City before their putting in use.

目的全面了解深圳市地铁站开通前空气微生物的污染情况，为地铁建设、环境保护、卫生防疫提供科学依据及探讨合理的控制措施。

Air permeability of field soil was obtained k1=4.8446×10^(-12)m^2 by soil column method. Meanwhile, relative permeability curve of air-water was gained by biphase flowing experiment. During experiment period, average of soil water content was 0.2689g and pH value was 7.0-8.5. The quantity of aboriginal animalcule went down sharply after pouring contamination into the ground and then rose gradually to its original level which was 10^7 (unit g1dry soil).

采用土柱法测得现场土壤的空气有效渗透率为k1=4.8446×10^(-12)平方公尺，通过气液两相流动试验得到气－液相对渗透率曲线；试验期间土壤平均含水量为0.2689g，pH值在7.0-8.5之间；微生物含量在注入污染物及营养盐后先下降后回升，驯化后期细菌密度达10^7（个g^(-1)干土）数量级。

Electrostatic precipitation is an air cleaning equipment widely used in collecting dust contamination.

在空气污染控制领域中，静电除尘器是一种应用非常广泛的颗粒污染物净化设备。

In order to evaluate the risk of groundwater contamination resulting from pesticide leaching, a new fugacity model was developed on the basis of former researchers'work. In this model soil was divided into two compartments: unsaturated consisted of three subcompartments: air, water, and soil solid, and saturated phase consisted of two subcompartments: water and soil solid.

在上述实验研究的基础上，结合农药污染地下水的研究在环境中的重要性，提出了一种包含地下水相在内的土壤多介质环境逸度模型，把土壤分为不饱和层相（由空气、水、土壤固体三个亚环境相组成）和地下蓄水层相，用来评价农药对地下水污染的情况。

Air sparging is widely used for remediating groundwater contamination of solvents or gasoline fuels. Air is injected into the saturated zone in the plume area through sparging well. Injected air contacts the contaminated groundwater and removes volatile organic compounds by volatization.

气提法应用在地下水及土壤污染整治的原理是将空气由注气井打入受污染区域的饱和含水层，注入地下水层的空气与非水相的挥发性有机污染物接触，会将污染地下水层的挥发性有机物挥发出来，并往上流入非饱和层中，再由抽气井抽出非饱和层之气体，将污染的挥发性有机物回收到地表进行处理。

It has a 'soft' neon tube ozoniser which does not produce NO fro air feed gas and therefore does not suffer from nitric acid production if the air feed gas is not totally dry and it does not produce an error in the NO2 reading due to a difference in window contamination due to the filtering effect of the NOx converter.

Signal Model 4000VM 提供 NOx/NO/NO2 连续输出，每3秒钟刷新一次数据，等同于 ECO 双反应室设计，它有一个氖管臭氧发生器，不会经由空气原料气生成 NO ，因此当空气原料气不完全干燥的情况下也不用担心产生硝酸，由于 NOX 转化炉产生过滤效应但污染物是在不同的窗口，所以 NO2的读数不会出现误差。

22 If air is recirculated to production areas, appropriate measures should be taken to control risks of contamination and cross-contamination.

如果空气会再循环到生产区域的话，应采取适宜的措施以控制污染和交叉污染的风险。

22 If air is recirculated to production areas, appropriate measures should be taken to control risks of contamination and cross-contamination.

4.22 如果空气再循环到生产区域，应当采取适当的控制污染和交叉污染的风险。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。