1) integrated water quality
综合水质
1.
Nonlinear differential equations are always used to describe the integrated water quality model of river ecosystem.
采用微分方程几何理论分析河流综合水质模型的基本方程,探讨了河流综合水质模型的平衡状态解的求解方法,并给出相关计算公式。
2) water quality assessment
水质综合评价
1.
In this paper,we have discussed deeply the research on WebGIS application in the field of water quality assessment management.
地理信息系统(GIS)因其强大的空间数据处理能力和可视化的友好显示功能,为水质综合评价管理提供了一个新颖、高效的工具。
3) comprehensive water quality assessment
综合水质评价
1.
Based on representative samples,a comparative study was carried out for seven typical comprehensive water quality assessment methods including single factor assessment method,pollution index method,fuzzy method,grey system method,analytic hierarchy process method,artificial neural network method,water quality identification index method.
为探讨综合水质评价结论的科学合理性,对典型的7种河流综合水质评价方法,包括单因子评价法、污染指数法、模糊评价法、灰色系统评价法、层次分析法、人工神经网络法、水质标识指数法,在归类分析其特性的基础上,针对代表性的评价样本,进行了综合水质评价比较研究。
4) comprehensive evaluation of water quality
水质综合评价
1.
Projection pursuit model for comprehensive evaluation of water quality;
水质综合评价的投影寻踪模型
2.
In the comprehensive evaluation of water quality, the results obtained by using those traditional methods for determining the weighting factors are normally quite subjective.
以往的水质综合评价因子权重的确定方法使得评价结果带有较强的主观性,神经网络方法则可以有效排除主观因素的干扰。
3.
Considering that comprehensive evaluation of water quality involves many indexes,many classifications and interval values,variable fuzzy sets theory is applied.
水质综合评价是一个涉及多指标、多级别、考虑区间值的模糊评价问题,将模糊可变集理论引入其中,在评价数学模型不变的前提下,用熵值法、等权法和单纯阈值法3种方法确定指标权重,并以东昌湖为例,分析了各方法对应的级别特征值的稳定性,最终确定各样本的评价等级,结果表明模型的合理性和实用性。
5) comprehensive assessment of water quality
水质综合评价
1.
A model based on genetic neural network was set up for comprehensive assessment of water quality.
建立了用于水质综合评价的遗传神经网络模型。
2.
Based on data of the water quality from Xincheng bridge in Lanzhou reaches of Yellow river,the authors setup a models of artificial neural networks BP networks presented for comprehensive assessment of water quality and the BP network model in which the multi unit of output employed by other researchers is substituted by single unit output .
为探讨水质综合评价的客观方法 ,以黄河兰州段新城桥段面水质资料为例 ,建立了地表水水质综合评价的BP网络模型 BP网络模型以单输出代替多输出可保证评价结果的惟一性 。
6) water quality comprehensive assessment
水质综合评价
1.
Based on the theory of Grey Associative Analysis,a water quality comprehensive assessment model is established.
基于灰色关联分析理论 ,建立了水质综合评价模型 ,并以马鞍山市水域为例进行分析、计算。
补充资料：地下水水质测定(见水质测验)
地下水水质测定(见水质测验)
dixiashui shulzhi eeding地下水水质测定见水质测验。
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