查询词典 contaminant

The electrolytic decontaminating method may be used for eliminating radioactive contaminant from metal parts of exservice nuclear installation, so that the metal waste may be degraded and reused.

本方法可广泛用于核设施金属表面放射性污染的电解去污，使核设施退役时产生的大量金属废物得以降级或再循环、再利用。

Water quality on-line monitoring equipment; water quality bio-chemical analysis apparatus; the experimental system for the dynamic simulation of water environments, and the on-line measurement of water body deoxygenating, re-aeration and the organic contaminant concentrations; the experimental system for the dynamical simulation of eutrophication of water environments.

实验中心主要仪器设备有：水质要素在线野外监测设备、水质要素生物化学分析仪器、水环境动态模拟与在线测定水体耗氧、复氧以及各种有机污染物浓度的试验系统，水环境富营养化动态模拟控制实验系统，可以对水质要素进行时间和空间上的监测与分析处理，为水污染治理提供科学的依据。

Mine solid wastes ; eluviated matter ; organic contaminant ; soil pollution ; groundwater pollution

矿业固废；淋溶物；有机污染物；土壤污染；地下水污染

On the basis of solute transport theory, the coal gangue eluviated in Xinqiu in Fuxin coal miming area was studied for the pollution of groundwater. The mechanism of coal gangue eluviated in the aquifer was analyzed. A coupled numerical model was developed with convection、sorption and dissolve、disintegration for simulating the leachate transport in groundwater. The model was discreted by using a Gelarkin finite-element method and a Picard iteration scheme, and the process of coal gangue leachate was presented, which predict the temporal and spatial distribution features of contaminant concentration. The result indicates that the contaminated plume is continually extended as time increases, and the vertical diffusion is more abvious.

以溶质运移理论为基础，针对阜新市新邱露天煤矿煤矸石淋滤液对地下水污染实际情况，分析了煤矸石渗滤液在含水层中运移的规律，在综合考虑对流扩散、吸附解吸、生物降解条件下建立了淋滤液在地下水中运移的耦合动力学数学模型，采用Galerkin有限元方法和Picard迭代法相结合对耦合模型进行了离散，模拟了淋溶液对地下水污染的动态过程，预测了污染浓度的时空分布特征，并结合实际观测数据进行对比。

In this paper, a program named NPGA-GW is developed for groundwater system multiobjective management, based on the niched Pareto genetic algorithm, which is coupled with the groundwater flow simulator MODFLOW and the contaminant transport simulator MT3DMS.

将地下水流模拟程序MODFLOW和溶质运移模拟程序MT3DMS相耦合，采用基于小生境技术的Pareto遗传算法进行求解，开发了一个用于地下水系统多目标管理的应用程序NPGA-GW。

The air injection into groundwater can reduce the hydraulic conductivity within the zone of influence, can slow down groundwater flow and contaminant migration.

空气的注入降低了影响区域的渗透系数，减缓了地下水的流动，有效地控制了污染物的迁移。

Bacillus cereus, a ubiquitous contaminant in food, can cause diarrhoeal and emetic types of food poisoning. The selectivity of several media for B.

蜡样芽胞杆菌(Bacillus cereus， Bc)是常见的食品污染菌，能导致呕吐和腹泻型两种不同类型的食物中毒。

The frequency of high voltage insulator contaminant flashover occurrence increase not only extends the scope, but also endangers the degree.

高压绝缘子的污闪事故发生的频率逐年提高、范围扩大、危害程度严重。

QUESTION: What contaminant causes red iron oxide particles?

问题：什么原因引起红色氧化铁颗粒的污染？

Mycotoxin contaminant of fruit and cereal pro ducts.

水果和谷物产品的毒枝菌素污染物。

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。