供水量
- 网络water supply;output;Water Volume;quantity of water supply
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结果表明,工业与生活增加供水量23.79亿m3,效益为183.73亿元;
The outcomes show that when water supply for industry and domestic use increases 2.379 billion m3 , the benefits is 18.373 billion Yuan ;
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供水量为250~450mm条件下,氮磷合理配施改善了地上部生物学性状,促进了地下部根系发育;
Under amounts of water supply 250 ~ 450mm , the concerted use of nitrogen and phosphate fertilizer could improve biological characteristics of aerial part , and promote root system development of subsurface part .
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深圳市供水量BP神经网络预测
Water supply quantity forecasting in Shenzhen City by BP neural network
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在单一阶段土壤相对含水率超过87.84%时,幼树叶片中SOD活性在中前期&生长前期和生长盛期随供水量的增加而增大。
When the relative soil moisture was more than 87.84 % at any single growth stage , the SOD activity of A.
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根据灰色系统理论,用GM(1,1)模型对城市自来水供水量进行了预测。
According to Grey System theory , this paper has forecasted the supplies tap water in cities by GM ( 1,1 ) .
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对于生长在旱季的小麦来说,水的增产作用是随着施N水平的提高而变得明显,N的适宜用量亦随供水量的增加而提高。
As far as winter wheat growing in rainfed landis concerned , yield increase by water becomes apparent with the improvement in N level . The optimal N application is improved by the optimal water supplies .
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同时,采用相同方法优化基于BP网络的水源供水量与系统要求水源压力之间关系的模型结构和权阈值,为优化调度奠定基础。
Furthermore , by using the same methods , the relationship between pump station flow and system pressure demand is established based on BP neural network to form a base for the optimal operation model .
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结果表明:当供水量变化范围较大时,总耗水(ET)和WUE呈显著线性负相关,ET对WUE的负效应明显大于产量(GY)对WUE的正效应。
The results showed that when water supply amount varied in a larger range , negative linear correlation existed between total water use ( ET ) and WUE .
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应用BP神经网络分别对安徽省的供水量与生活用水量进行预测,求得生产用水量,为进一步进行宏观经济分析提供数值依据;
Use the Back Propagation Neural Network to forecast the water 's quantity of supplying and life expending in ANHUI province , so get the water 's quantity of industry expending , afford the numerical warrant to the further macro-economics analysis ;
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H市自来水公司近几年来,水量漏失严重,企业供水量与收费额差值过大,导致产销差严重背离国家对同类企业允许的漏失率。
According to the report of the waterworks in H City for the recent years , differentia between water supply and charge is extremely large because of the severe leak , which leads to serious deviation of produce-sale differentia correspond to the leak rate allowed in our country .
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同时,基于SVM算法建立了各个水源供水量和水源供水水头、用水量之间的定量关系,较好的解决了供水系统优化调度研究中宏观建模的问题。
Furthermore , relationships between pump station flow and pump station head , total system water demand based on SVM were established , which solved the problem of macroscopical modeling for the second part of optimization and operation of water supply system .
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对净灌溉供水量NIR进行频率分析,确定了平水年(50%)、中等干旱年(75%)以及干旱年(95%)的烟草生育期的需水量和有效降雨量。
By analyzing frequency of net irrigation water supply , water requirement and effect rainfall of tobacco growth stage in moderate year ( 50 % ) , medium dry year ( 75 % ) and dry year ( 95 % ) were confirmed .
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0-2.0m土层供水量在不同坡向差异很大,阳坡0-2.0m土层供水量占总耗水量的97%,阴坡仅占67%。
The soil water between 0-2.0m is different in different slope direction . It accounts for 97 % of total soil water consumption in sunny slope and only 67 % in shady slope .
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城市供水量受多种因素的共同影响。
Urban water supply quantity is influenced by several factors together .
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这是由于洗衣机的供水量太小所引起的。
As the water level of washing machine is too low .
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时间序列法在供水量预测模型建立中的应用
The Time Series Analysis in the Construction of Water Supply Prediction Model
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深圳市供水量的最优组合预测
Optimal Combination Forecasting of Water Supply Quantity of Shenzhen City
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武汉市日供水量与气象要素的相关分析
Correlation Analysis on Daily Water Supply and Meteorological Factors in Wuhan City
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计算资料条件下,中线工程供需意义上的供水量风险值约为20%。
The risk of water supply is about 20 % .
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新增可供水量的评价方法
Estimate Method of Amount of New Increased Water Supply
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配水系统中水压供水量模型的一种确定方法
A Method of Determining Waterhead-Flow Model on Optimal Dispatch of Water Supply Network
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作物缺水条件下灌溉供水量最优分配
The optimal allocation of irrigation water with diversified crops under limited water supply
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济南市供水量预测数学模型的建立及分析
The establishment and analysis of Jinan Providing-water mathematical model
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南水北调中线工程供水量风险分析
Risk Analysis on Water Supply Quantity for Middle-Line of South-North Water Transfer Project
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山东省大型水库可供水量分析与研究
Study on Available Water Supply of the Large Scale Reservoirs in Shandong Province
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供水量与施氮量的关系中,低水低氮配合,产量很低;
Low water and N levels produced low yield ;
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加州的水库中目前仅剩1年左右的供水量。
California has only about one year of water supply left in its reservoirs .
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利用模型预测了2004年的供水量。
The annual water supply volume of the year 2004 was predicted with the models .
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林分耗水量夏季大于春季和秋季,4~6月耗水量大于供水量。
Total water consumption in the stand is higher in summer than spring and autumn .
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济南市中心城区可供水量、需水预测及供需平衡分析。
The analysis of water , water demand forecasts and supply-demand balance of Jinan city center .