需水量 的英文怎麼說

中文拼音 [xūshuǐliáng]
需水量 英文
water demand; water requirement
  • 需 : Ⅰ動詞（需要） need; want; require Ⅱ名詞1. （需用的東西） necessaries; needs 2. （姓氏） a surname
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 水量 : water yield; the yield of water水量計[表] watermeter; 水量平衡 water balance; 水量收支 water budget
  1. The result shows, for this composite cement system, retarding action of dihydrate gypsum is more obvious than that of anhydrite, meanwhile, anhydrite tends to cause setting time short and water needed increased

    結果表明：二水石膏對該種復合體系水泥的緩凝作用比硬石膏明顯，硬石膏易引起復合體系水泥急凝和需水量增大。
  2. The dissertatio n constructs the index system, introduces the coefficients of development, coordination, fairness, and the coefficient of sd, which is composed by the former three and can reflects the sd overall strength of watershed, brings forward the quantative criteria of in order that the research of wrcc is based on the good watershed ecology and environment, the dissertation, according to the ecological appropriate theory, builds the logarithm normal distribution model about the relation between the growth of natural vegetation and the depth of groundwater ; based on this relation model, proposes a quantitative method of ecological water requirement ( ewr ) of natural vegetation in arid area, which utilizes the results of rs technique and the spot testing data of vegetative physiology demand

    針對流域特點建立了基於水資源的流域可持續發展評價指標體系，引入發展系數、協調系數、公平系數，以及由其構成的衡量水資源支撐社會可持續發展綜合水平與能力的可持續發展系數，提出了可持續發展的定量判別方法。為保證在良好生態的前提下進行水資源承載能力研究，論文根據生態適宜性理論，建立了乾旱區典型天然植物生長與主要環境因子的偏態單峰對數正態分佈模型。基於此關系模型，利用遙感技術成果以及植物生理需水的現場實驗數據，提出了乾旱區天然植被生態需水量計算方法。
  3. Knowledge of historic and present water demands is needed to provide a factual base for predicting future water demand.

    應了解過去和當前的需水量，以便為估算未來的需水量提供實施依據。
  4. Experimental study on litchi water requirement

    荔枝需水量試驗研究
  5. Analysis of irrigation demands and evapotranspiration in the piedmont of taihang mountain

    太行山山前平原區蒸散量和作物灌溉需水量的分析
  6. Calculation method on ecological pondage and ecological water requirement of marsh

    沼澤濕地生態儲水量及生態需水量計算方法探討
  7. According to the least twin multiplication to calculating the sensitivity index in several water production functions. thus, the writer obtains the fitted the value of the sensitivity index and the varied rule. at the same time, the writer puts forward a new method named rag a ( real coding based accelerating genetic algorithm ) and combines raga with dpsa to calculating the best irrigation system under the non - sufficient irrigation of well irrigation rice in sanjiang plain

    根據《隨機水文學》理論中的時間序列分析法，建立了適合三江平原井灌水稻需水量預報的非平穩時序隨機模型；通過分析降雨隨機特性，選定季節性時序隨機模型，建立了適合三江平原井灌水稻降雨預報的月平均降雨模型；根據最小二乘法，計算出幾種常用水分生產函數中的敏感指數及敏感系數，進而得到三江平原適宜採用的水分生產函數漠型及模型中敏感指數的變化規律；本文提出遺傳動態規劃法（ raga ? dp ） ，即採用改進的基於實數編碼的加速遺傳演算法（ realcodingbasedacceleratinggeneticalgorithm ，簡稱raga ）與動態規劃法（ dpsa ）相結合，推求非充分灌溉條件下三江平原井灌水稻的最優灌溉制度。
  8. Eco - environmental water requirement in the zhalong wetland

    扎龍濕地生態系統需水量
  9. Taking xinzhou city as the case, the paper analyzes the city ' s actual situation of water supply, available water sources and their amount, distribution and development. it also calculates the mid and long term needed water amount and insufficient water amount in the city. taking the natural, commercial and life material properties and environmental function of water sources into full consideration, taking the satisfaction of the needed amount of the city and the balance and the largest capacity of every water source as the prerequisite, the paper aims at the mid and long term water supply sources ( north water sources region, douluo water sources region, shuiquanwan water sources region ) and the lest spending on the investment and operation of the self - equipped wells ; through the determination of decision variables, a model of economic management for the city ' s water supply is established, witch carries out the mid and long te rm optimal operation of water supply for the city

    本文以忻州市為例，分析了忻州市供水現狀，可供水水源、水資源量、分佈及開發利用情況，預測了中長期需水量和缺水量，充分考慮水資源的自然屬性、生活資料屬性、商品屬性和環境因素功能，通過決策變量設置，在保證城市需水量、水資源平衡和各供水水源最大供水能力的前提下，以開采忻州市中長期供水水源（北水源地、豆羅水源地、水泉灣水源地）和自備井開採的投資和運行費用最低為目標，建立了城市供水水源優化調度經濟管理模型，運用線性規劃方法進行了城市中長期供水水源優化調配。
  10. At last, the water resources security and countermeasure were given. every parts of the eco - environmental water demand in hejin city were analyzed and calculated in this paper

    另外，本文對河津市的生態環境需水各項進行了詳細的分析和預測，逐一計算了不同年份的生態環境需水量。
  11. First each of the eight factors, i. e., per capita water resource available, per capita water requirement quantity, environmental water use rate, utilization rate of water resource, industrial water requirement quantity per 10, 000 industrial product value, water requirement module, regional irrigation rate was analyzed. then the water resource capacity in hejin city was evaluated by applying the fuzzy comprehensive estimation

    選取了人均水資源可利用量，人均供水量，生態需水率，水資源利用率，萬元工業產值需水量，需水模數，生活需水定額，耕地灌溉率等8個評價因素，利用模糊綜合評判模型對其水資源承載能力進行了評價研究，並提出了河津市水資源安全對策。
  12. The water resource and its current using condition in hejin city of shanxi province were analyzed in this paper. based on the development rate of the loess plateau, the water demand & water supply from the year 2005 to 2050 was forecasted, and the water demand & water supply in different cases was analyzed

    本文把常規趨勢預測和模糊綜合評判相結合，以黃土高原地區社會經濟發展趨勢為背景，結合河津市實際情況適當調整發展參數，預測了該市2005年2050年的需水量、供水量，分析了不同方案下水資源的供需平衡。
  13. At present, the studies about the controlled alternate furrow irrigation are focused on how it affects the water physiological indexes, water consumption and yields of crops. but, some problems suc h as the soil infiltrative parameters, irrigating water advancing, water redistribution in soil, calculation of crop water requirement and water consumption, and the upper and lower limit indexes of soil moisture, guiding a field irrigation after the controlled alternative furrow irrigation is implemented in field, have not been researched systematically and deeply. if these problems could not been solved commendably, the popularization of controlled alternate furrow irrigation will be affected

    然而，目前有關交替隔溝灌溉的研究還主要集中於這種灌水方式對作物水分生理指標、耗水量和產量的影響方面，而對大田採用這種灌水式后的土壤入滲參數變化情況、作物需水量與耗水量計算、以及指導大田灌溉的水分下限控制指標等與大田生產實際密切相關的幾個問題基本上還沒有進行系統的深入研究，而這些問題如不能得到很好地解決，勢必會對這種灌水方式的推廣應用產生嚴重的影響。
  14. According to the optimal irrigation scheduling, the irrigation demand hydrographic in four representative years of huimin and wudi are computed

    在灌溉制度模擬優化的基礎上，推求出代表年惠民、無棣推至田間的基本灌溉需水量和需水過程。
  15. Secondly, many crop water parameters, including eta, wue and water sensitive parameters etc., were studied through onsite experiment, typical household survey and other methods. by analyzing crop water usage characteristics, we concluded : 1. about eta : the amout of pear water consumption was highest ( 750. 2mm ), however, the watermelon planted in greenhouse consumed only 266. 5mm ; 2

    通過對大田作物需水量與自然降水量的平衡分析，可以將順義區主要大田作物分為三類： 1 ）灌溉需求量較大的作物，包括水稻、冬小麥、苜蓿、棉花； 2 ）灌溉需求量較小的作物，包括夏播作物（夏玉米、夏花生、夏大豆）和耐旱、避旱作物（高梁、穀子） ； 3 ）中間型作物，包括大部分春播作物（春玉米、春花生、春大豆等） 。
  16. The paper deals with the calculation methods of river diluting and self - cleaning water demand. optimal model is mentioned for the first time considering self - cleaning, sewage treatment extent and water fee, and the ecological water requirement is to be forecasted base on the change of sewage drainage in the near future. lastly, calculating procedure for ecological water requirement in south china is presented

    著重研究了河流稀釋自凈需水量的計算方法，初步構建了考慮水體自凈與污水處理率及用水費用相結合的生態需水量優化模型，依據未來年份污水排放量的變化，預測生態需水量，並通過實例說明南方河流系統生態需水量的計算過程。
  17. The paper discusses the methods of multi - objective ecological operation of reservoirs, which covers the establishment of legislation systems ; water demands for the basic ecological functions of downstream river channel ; reservoir discharge patterns simulating natural hydrological regimes ; regulation and control of sedimentation and eutrophication of reservoirs ; mitigation of the influences by water temperature stratification ; the operation techniques in pollution prevention and connectivity reinforcement of water systems

    文中討論了水庫多目標生態調度的方法，包括建立相應法規體系；保證維持下遊河道基本生態功能的需水量；模擬自然水文情勢的水庫泄流方式；進行水庫泥沙調控及水庫富營養化控制；減輕水體溫度分層影響；進行防污調度以及增強水系連通性等方面的調度技術。
  18. The method of allocation of eco - environmental water demand in water resources planning

    生態環境需水量在水資源規劃中的配置方法
  19. In the fourth chapter, the effect of controlled alternative furrow irrigation on the ratio of root to shoot, filling rate, leaf physiological indexes, yield and water use efficiency of summer maize were discussed, and the lower limits of suitable irrigation for summer maize in controlled alternate furrow irrigation were analyzed and determined

    29 ，表明干濕交替循環不僅可以減少每次灌水間隔期間的棵間土壤無效蒸發，而且也抑制了作物的奢侈蒸騰，因此作物需水量明顯減少，節水效果非常顯著，被證明是溝灌方式中最科學的一種灌水方法。
  20. That the connotations, forming mechanisms, and the calculation methods on each element involved in water price are studied systematically and deeply. the water prices of luanhe basin, tianjin city and yinluanrujin iwt system in the typical year 2000 are calculated as the cases. the problems including the relationships between water price and water demand, as well as the bearing capacity of the consumer to water price are discussed

    提出了水價構成的理論公式；對水價構成中各基本要素的內涵、形成機理及其計算確定方法進行了較系統深入地分析研究，並對2000典型年灤河流域、天津市和引灤入津調水系統的水價問題進行了實證研究；對水價與需水量的關系以及用戶對水價的承受能力等問題進行了一定的分析探討。
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