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水平年的英文

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"水平年"怎么读用"水平年"造句

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  • target year

例句与用法

  • Furthermore , the amount of water resources demand in 2030 and 2050 are calculated according to the predicted indices such as population and economic development of the target year
    根据预测的各水平年的人口、经济发展等指标,估算相应的水资源需水量。
  • Transmission long - term planning is a dynamic , multi - stage and nonlinear combinative optimization problem . the thoughts of how to carry out multi - stage transmission network planning are analysed
    电网长期规划既要考虑各水平年的电网结构,又要考虑各水平年的方案过渡,是一个动态的多阶段非线性整数规划问题。
  • Because of complex system , so building simulation module to resolve system . gaining single and joint irrigation areas operation results in different level year and different frequency , so as to realize rational distributing water resources
    通过模拟实际计算,得到不同规划水平年2005 、 2015年在50 、 75以及95的情况下单灌区调度和联网调水的结果,以期实现对水资源的合理调配。
  • The recognition and measurement of social , economic , and environmental benefit are studied and concrete expressions of these three objects are given ; according to different features of water users and water sources , the concepts and calculation methods of water use fair coefficient of water users and water supply sequence coefficient of water sources are presented ; the concept and calculation method of accordant coefficient of water environment and economic system are also put forward and it is considered as a condition of constraint ; the method to calculate discharge amounts of key contaminants in a planning standard year is brought forward ; on the basis of analyzing characteristics of the model for optimal allocation of regional water quality and water quantity , the method based on matlab optimal toolbox to solve the model is discussed
    模型中考虑了社会目标、经济目标、环境目标的识别和度量方法,给出了三类目标的具体函数表达式;根据用户特性和水源特性的不同,引入了用户用水公平系数、水源供给次序系数的概念和度量方法;由于区域水环境与经济的协调发展是区域可持续发展的核心内容,因此本文提出了水环境经济协调发展度的概念,并给出了相应的计算公式;对规划水平年区域重要污染物排放量进行了计算,并以约束条件的形式予以考虑;分析了区域水质-水量联合优化配置模型的大系统、多目标、非线性等特点,探讨了基于matlab优化工具箱的模型求解技术和方法。
  • ( 4 ) through allocating water resources adjustment and control 36 projects of 2010 , 2020 , 2030 and 2050 in the yellow river , solved prepared projects and analyzed adjustment results . strategic allocation project is chosen for water resources sustainable utilization in yellow river basin and keep it healthy life , at the same time rationality and feasibility of this adjustment and control theory and method are validated
    西妥理工大学硕士学位论文( 4 )通过对黄河流域2010 、 2020 、 2030以及2050水平年方案集的36个方案水资源调控模拟配置,对备选方案进行了调控求解,分析比较了调控成果,为黄河流域水资源的可持续利用、维持黄河健康生命,遴选了战略性的配置方案,同时也验证了本论文调控理论和方法的合理性和可行性。
  • Base on the present condition of wangyi district , the following things have been done . at first , this paper analyses the water resources in wangyi district , at the same time , analyses and forecasts the water demand in different years from living , industry , agriculture and ecology environment aspect , and analyses the water supply and demand balance
    本文结合王益区的实际情况,主要做了以下几方面的工作:首先对王益区的水资源做了系统的分析,同时,从生活、工业、农业、生态环境四个方面进行了不同水平年需水量的分析与预测,并进行了水量供需平衡分析。
  • The study bases on the four operating conditions of which the longnan network will be implemented in the year of 2005 and 2010 . first , this paper calculates the power flow distribution that including the line charging reactive power and input of the low - voltage shunt reactor in chengxian s / s . assumed that the bus voltage of tianshui s / s and bikou power plant to be constant , the study count the voltage level of the 330kv and 220kv bus - bar when the 330 / 220kv transformer in standard tap changer position . in order to set control rules
    本文基于陇南电网在规划发展水平年2005年及2010年的四种可能的运行方式下及潮流条件,计算出了计入线路充电无功及投入成县变低压并联电抗器后的潮流分布,在设定甘肃大网侧及碧口电厂侧母线电压恒定条件下,计算了330kv及220kv主变在有载调压标准分接头变比下的330kv及220kv母线电压水平。
  • This will provide concrete reference for parameters values which mainly depend on the experiences . according to the selected bp model and related water table depth records and other information , the annual and monthly mean water table depth trends in the future planning year ( 2005 , 2010 ) are forecasted on condition that water saving reconstruction projects are accomplished in the larger scale experimental zone ( jiefangzha ) of hetao irrigation district
    在此基础上根据黄河河套灌区多年的水文、气象和地下水信息,对一个大尺度区域的多年年均地下水埋深变化进行了bp模型的模拟与检验,预测了灌区节水工程实施后未来规划水平年( 2005 , 2010年)年平均、月平均地下水位下降的动态。
  • This paper studies the 330kv power transmission project associated with the features that the interior power flow changes greatly in the different planning year level and change with summer and winter operating modes . this paper carry the study on the reactive power & voltage coordinated control of the 330kv , 220kv and 110kv network with the 330kv chengxian s / s as the center
    本研究作为330kv天水-成县送变电工程的一个专题研究项目,结合工程建成后在不同水平年及夏小、冬大运行方式下,网内潮流变化大的特点。
  • Among these numerous prediction methods , bp neutral network methods is considered as the best one and applied prevalently , with high precision , good effect and feasibility . so this study chose bp to predict water demand in tangshan city of the programming year of 2010 year . because the original statistic data of water resources utilizing was about resident living and factory producing , water demand with bp method was just the two
    对几种典型需水量预测方法进行评析,在众多预测方法中选择应用最为广泛、预测精度高、效果好的bp神经网络法预测规划水平年2010年城市需水量,由于原始统计数据主要城市生活和工业用水, bp预测的也只是这两部分用水量,对于农业用水则通过灌溉用水定额和灌溉面积计算,生态环境用水则是类比调查确定。
  • 更多例句:  1  2
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