The water quality simulation of BOD_5 must adopt the BOD_5—DO coupling model.
使生化需氧量BOD_5的模拟所需采用的BOD_5—DO耦合模型的求解十分困难。
On this basis, an unascertained model of water quality simulation is established.
在此基础上，建立未确知水质模拟模型。
Case study showed that the models provided here are quite suitable for river water quality simulation and risk assessment.
实例研究表明，所建模型对于河流水质模拟与风险评价具有很好的适用性。
The software includes an electronic map interface, a water quality simulation module and a water environment capacity calculation module.
该软件系统包括电子地图平台、水质模拟模块和水环境容量计算模块。
With the freshwater becoming less and less, how to make use of and to protect the groundwater is calling our attention, for which simulation of water fluid and water quality is essential.
随着淡水资源紧缺状况日益加重，合理利用和保护地下水资源逐渐得到社会的广泛关注，水质模拟与预测是评价和保护地下水工作中不可或缺的重要程序。
Because the simulation range of river network is wide, the water quality is mostly simulated in numerical method.
由于河网的模拟范围很大，多数情况下只能采用数值方法进行水质模拟。
The simulation of WASP4 showed that the opening of Taipu River would obviously improve water quality of Songpu bridge intake in Huangpu River.
运用W ASP4 模型系统模拟结果表明，太浦河的开通将明显改善黄浦江松浦大桥取水口水质。
The grey simulation method for river water quality system is studied and an example of application is given.
本文研究了河流水质系统的灰色模拟方法，并给出了应用这种方法的计算示例。
Simulation results show that this scheme makes dry season water quality better and the water environment improves greatly.
模拟结果表明，该方案改善河道枯水期水质明显，水环境质量得到较大提高。
A water quality model considering pollutants as conservative materials is presented, and the numerical simulation results of salinity in Bosten Lake are found agreeable with the measured results.
利用将水体中的污染物作为保守物质的水质模型，通过数值模拟，计算得出的博斯腾湖湖水矿化度与实测资料基本吻合。
The simulation of the pollutant transportation in the uniformity velocity field, indicates the model has reach a rather high precision facing the water quality problem.
通过模拟均匀流场中的污染物迁移，得出模型对于求解水质问题具有相当高的精度。
Water pollutant migration mechanism is felt out by combining water environmental quality evaluation and water pollutant transport simulation, thus making the preventive measures to water pollution.
通过水环境质量评价和水体污染物运移模拟的结合，摸清水中污染物的运移机理，从而制定有效的水污染防治措施。
QUAL2E was released by USEPA as a comprehensive and versatile stream water quality model. QUAL2E can be used as a powerful tool for stream water quality quantitative simulation.
QUAL2E模型，该模型是美国国家环境保护局（US EPA）推出的一个河流综合水质模型，该模型具有综合性、多样化和灵活通用的特点，是进行河流水质定量模拟的有力工具。
The simulation and prediction analysis of water quality in water pollution emergencies can provide decision support for emergency treatment and emergency rescue and the like.
水污染事故水质模拟预测分析能为应急处理和应急救援等方面提供决策支持。
This method is a simplified model for water quality prediction with simply computation and rapid speed, so it is an effective complement to the complex numerical simulation.
利用矩阵运算预测水质变化是一种简单的水质预测模型，计算简单、速度较快，是对复杂数值模拟方法的一种补充。
However, the simulation and prediction of the quality of the polluted water is the critical link in the prevention and urgent handling of emergencies.
而对于突发事故的预防、应急处理中，事故水质的模拟预测是非常关键的环节。
Water quality model is a key tool of water pollutant transport and transform simulation. It is widely used in the field of water environment protection and water pollution prevention and cure.
水质模型是水体污染物迁移转化模拟的主要工具，在水环境保护、水污染防治等领域得到了广泛地应用。
Water quality model is a key tool of water polluter transport and transform simulation. It is widely used in the field of water environment protection and water pollution prevention and cure.
水质模型是水体污染物迁移转化模拟的主要工具，在水环境保护、水污染防治等领域得到了广泛的应用。
The temperature field and the contamination concentration field were Simulated. Using 2-D numerical simulation model, The effect of thermal discharge on hydrobiont water quality were predicted.
采用平面二维水流、温度场和水质数学模型对流场、温度场和浓度场进行了数值模拟，并对电厂温排水的热影响和水质影响进行预测。
The temperature field and the contamination concentration field were Simulated. Using 2-D numerical simulation model, The effect of thermal discharge on hydrobiont water quality were predicted.
采用平面二维水流、温度场和水质数学模型对流场、温度场和浓度场进行了数值模拟，并对电厂温排水的热影响和水质影响进行预测。
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