water balance 中文意思是什麼

water balance 解釋
水份代謝
  • water : n 1 水；雨水；露；〈常作 pl 〉 礦泉，溫泉；藥水。2 〈常 pl 〉水體；水域；水道；海；湖；河；海域；...
  • balance : n 1 〈常作 a pair of balances〉 天平，秤。2 平衡，均衡，對稱；抵消；比較，對照，對比。3 （鐘表的...
  1. Analysis on suitability of water balance technology

    水平衡測試技術適用性分析
  2. This paper proposes the use of steam condensate to wash the acidulation tail gas, then to be used as wash water for washing phosphogypsum, to be returned to the crystallizer, and a calculation is made of water balance in the system, so that the discharge of wastewater and waste gas is up to standard

    本文提出用蒸汽冷凝液洗滌酸解尾氣，然後用於洗滌磷石膏的洗水，返回結晶槽，並對系統的水平衡進行計算，可以實現硝酸磷肥生產的廢水和廢氣的達標排放。
  3. Forestland evapotranspiration and water balance of pinus tabulaefor - mis and quercus variabilis mixed stand

    油松栓皮櫟混交林林地蒸散和水量平衡研究
  4. From april to october of 2001, a 31 - year - old pinus tabulaeformis and quercus variabilis mixed stand was studied on forestland evapotranspiration and water balance in western mountainous area of beijing

    摘要2001年4 - 10月，對北京西山地區一塊31年生的油松、栓皮櫟混交林的林地蒸散和水量平衡進行了研究。
  5. Water balance of major forest types in east liaoning mountainous region

    遼寧東部山區幾種主要森林植被類型水量平衡研究
  6. Arrangement of protective forest system in gulled - hilly loess area based on water balance

    基於水分平衡的黃土區小流域防護林體系高效空間配置
  7. The climate characteristics of global water vapor transport and global water balance are analyzed by using the ncep / ncar reanalysis data set from 1958 to 1998

    利用ncep / ncar1958 1998年再分析資料分析了全球水汽輸送時空分佈的氣候特徵和全球水分平衡。
  8. Especially, global transformation, the water balance, carbon balance and drought forecast in district, etc, which all require quantitative surface flux. by all appearances, these fluxes all do n ' t need to be distributed in spots, but in area

    尤其全球變化、區域水分平衡、碳平衡和區域旱災預報等等都需要定量的地表通量信息（輻射通量、顯熱通量、潛熱通量、土壤熱通量） 。顯然，這些通量均要求區域分佈的而不是單點數據。
  9. Application of water stress coefficient from fao56 to the field water balance analysis

    56計算水分脅迫系數的方法在田間水量平衡分析中的應用
  10. Application of tracking down a leak out of the pipe net of water balance test methods in fujin city

    水量平衡測試法在富錦市供水管網檢漏中的應用
  11. Forestland evapotranspiration and water balance of picea asperata mast. and larix gmeini rupr mixed stand

    青海雲杉和華北落葉松混交林林地蒸散和水量平衡研究
  12. The model not only comprises the continuous conversion of " four waters " but also follows time scale water balance

    模型不僅考慮了「四水」轉化過程的連續性，而且遵循了區域的時段水量平衡。
  13. The present utilization and existing problems in water resource of the north of huaihe river in anhui are introduced. based on such research objects as northern guo river of bozhou, jiangtang of fuyang and key city zones, a mathematical model with systems engineering viewpoint is established and used to investigate in water resource problems in the area. the main contents are as following : ( 1 ) groundwater resource and present utilization ; ( 2 ) mensuration of calculational parameters of groundwater and calculational methods ; ( 3 ) economic parameters of irrigation areas ; ( 4 ) establishing northern wo river forecast model with finite element method, areal well - group method and water balance method ; ( 5 ) establishing optimal water resource allocating model for northern jiangtang and new cihuaixin river irrigation area and investigating in the combination of surface water and groundwater, optimal agricultural planting - mode and optimal distribution proportion of various water sources ; ( 6 ) some existing exploitation problems and advices about water resource in the area

    本論文針對淮北地區水資源開發利用現狀及存在問題，以安徽亳州渦河以北地區、阜陽姜堂鄉和重點城市區為研究對象，運用系統工程觀點，採用數學模型方法，對該區水資源問題進行了綜合研究，主要內容為： （ 1 ）地下水資源及開發利用現狀； （ 2 ）地下水計算參數測定和計算方法； （ 3 ）灌區經濟參數； （ 4 ）採用有限單元法、面狀井系法、水均衡法，建立亳州渦河以北地下水位預測模型； （ 5 ）建立阜陽姜堂及茨淮新河北部的農灌區水資源優化配置模型，應用系統分析的方法，研究地表水與地下水聯合運用，農業最優種植模式及各種水源的最佳分配比例； （ 6 ）淮北地區水資源開發利用存在問題及建議。
  14. On the basis of analyzing infiltration process to different soil and water conservation tillage measures type, a increasing infiltration r ates model for different soil and water conservation tillage measures type by using water balance equation is woke out. 4. accumulation depth and soil crust have a better affect to soil initial stage infiltration rates and a little affect to soil stable infiltration rates

    （ 4 ）積水深度和土壤結皮對初始入滲速率影響較大，對穩定入滲速率影響不大，隨著積水深度和結皮厚度的增大，這種情況尤為顯著，如在積水深度為5cm和3cm情況下，穩定入滲速率在黃土高原溝壑區分別為0 . 57mm min和0 . 56mm min ，在黃土丘陵溝壑區分別為0 . 94mm min和0 . 93mm min ，兩者相差甚微。
  15. The membrane properties were found to be dependent upon the content of styrene. the membrane physic - chemical properties compare to nafion 117 except that their chemical stability has to be further improved to make them acceptable for practical use in the proton exchange membrane fuel cell. the proton transport through the membrane follows the " liquid - like " proton conductivity mechanism y and the water balance is important for the working condition of the fuel cell

    對磺化膜的研究分析表明：膜的性能參數如離子交換容量、吸水率、水合系數、形體穩定性、導電性能、化學與熱穩定性等依賴于膜中苯乙烯含量，且接枝苯乙烯相互間的位阻效應對膜性能影響很大；膜的性能可與nafion膜相比較；質子在膜中的傳導遵循「似液體」質子傳導機理；電滲析與擴散作用使膜保持水平衡。
  16. And the influence of water condition to growth and yield of crops were discussed briefly. then based on the meteorological data, yield data, drought and flood data of jiangsu province from 1961 to 2000, the water profit and loss of every ten days in the growing period of crops was calculated on the foundation of the water balance formula in every agriculture climate district. the disaster index of drought and flood was confirmed and calculated

    根據江蘇省近40餘年的氣象資料、產量資料和旱澇災害資料，分農業氣候區利用農田水分平衡方程計算了不同作物逐旬水分盈虧量，確定了旱澇災害指數，並用多元積分回歸方法分析了降水對棉花和小麥產量的定量影響，得出作物生長期內逐旬水分敏感指數。
  17. A dynamical model of h2 fuel cell stack with water balance is developed in this paper for studying steady and dynamical performances of proton exchange membrane ( pem ) fuel cell stacks

    摘要提出和建立了包含水平衡的氫燃料電池堆的動態模型，用於研究質子交換膜（ pem ）燃料電池堆的靜、動態性能。
  18. Take middle - east district of taipusi banner as study area in the paper, combining field observation test ( pumping test and field survey ) with indoor experiment ( granule analysis and organic matter analysis etc ), based on the relationship between hydrological parameters and physical - chemistry characteristic parameters of formation, the variability of aquifer parameters and physical - chemistry parameters of unsaturated zone have been also analyzed. the aquifer system of the taipusi banner is identified and analyzed by using the internal and outside information. on the basis of real pumping of ground water, the water resources evaluated by the water balance method

    本文以太僕寺旗中東部地區為研究區域，採用野外試驗（抽水試驗、實地調查）和室內實驗（顆分、有機質等實驗）相結合的方法，推求了研究區含水層系統的水文水利參數，在系統模擬含水層水理參數與巖性物理化學特徵參數之間的關系基礎上，進一步分析了含水層參數及其包氣帶的物理、化學特徵參數的空間變化特徵，並利用其內外部信息對太僕寺旗含水層系統進行了辯識與分析；以現狀地下水開采量為依據，採用水均衡法評價了研究區水資源總量，並利用有限單元法來模擬分析驗證。
  19. In analyzing the dynamic phenomenon in a groundwater for producing in type in different influence to take the foundation of the effect with characteristic and its environments, the influence mechanism for water matter activity to groundwater dynamic changes is studied, making use of theories the groundwater seepage flows and the water balance

    在分析不同影響類型所產生的地下水動態的現象和特徵及其環境負效應的基礎上，利用地下水滲流和水均衡理論深入分析了水事活動對地下水動態的影響機理。
  20. For this reason, our objective is the research of the mechanism of runoff generation and characteristics of moisture changing process of slope farming purple soil, accordding to the theory of hydrology and the intergrated - means of compined the hydrology with the peodology, because it is the basis of the studies : soil erosion and protection, farming - land water balance, non - point pollute, etc., and the direction gist of runoff arrange implement, solving water hazard and management of irrigation and fertilizer

    綜觀國內外有關研究，我們認識到對紫色土土壤產流和水分變化特徵的認識，是認識該區土壤侵蝕與保護、農田水量平衡、非點源污染等的機理和規律的基礎，也是解決該區水患問題、實施徑流調節而提高旱地的雨水利用程度，以及水肥管理等的基本科學依據。因此，以水文學原理為基礎，採取水文學與土壤學、地理學、水土保持學等相結合的途徑，研究紫色土坡耕地的降雨產流機制與產流後土壤水分的變化特徵，是具有新的科學價值和現實意義的。
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