water availability 中文意思是什麼

water availability 解釋
水有效性
  • 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;...
  • availability : n. 1. 有效,有益,可利用,可得到。2. 可得到的東西[人員]。3. (候選人的)當選可能性。
  1. This paper evaluates the underground water resources and its safe levels of miming, and then studies the availability of molepipe drainage, a kind of practical underground water regulation technique. starting with the elevation of underground water resources and a safe level of mining through variable system theory, this paper analyzes the conditions of underground water resources based on the well - studied determination method of determining the two hydrographical coefficients : rainfall infiltration replenishment rate and irrigation replenishment rate. then considering irrigation, rainfall, drainage and other related factors, a mathematical model is set up for the calculation of underground water storage, exploitation on water regulation

    論文從灌區的地下水資源及其可開采量評價分析方面入手,在對兩個主要的水文地質參數即降雨入滲補給系數、灌溉入滲補給系數確定方法研究的基礎上,對灌區的地下水資源狀況進行分析,依據灌區的灌溉、降雨、排水條件及各種現狀因素,建立了地下水資源量計算的數學模型,西安理工大學工程碩士專業學位論文計算得到青銅峽灌區地下水的最大補給量和可開采量;另外對在開發利用地下水資源過程中的地下水位的調控進行了初步的探討,在銀北灌區開展對暗管排水調控地下水位的試驗研究。
  2. The abundance and availability of water and nutrients in a soil ecosystem determine its fertility.

    土壤生態系統中水分和養分的豐度和有效性決定土壤的肥力。
  3. E., picea crassifolia forest, sabina przewalskii forest, shrubs and grazing land, soil water dynamics was revealed. transformation feature and availability of water moisture content for main vegetation type were studied and evaluated

    3對祁連山林區雲杉林、圓柏林、灌叢林、放牧草地等4種主要植被類型土壤水分動態研究,揭示出生長季節內各植被類型的土壤水分動態變化規律。
  4. Xinjian industry park, city of yixing is located in the north - west of yixing. it ' s the golden area at the interseetion of four cities of yixing / wujin / jintan and liyang. yijin road and xinfeng river run through the industry park in north - south direction. changli road is very close to the north side of the park. the total programmed area for the industry park is 8 square kilomelers, the initial stage covers 4 square kilometers and " seven availability and one leveled " is realized. xinjian industry park is one of the model parks of jiangsu province, the key industry park of city of wuxi. convenient water / land transportation and excellent investment environment make it an ideal land for investment and development

    宜興市新建工業園位於宜興市西北,是宜興、武進、金壇、溧陽、四市交界的黃金地帶,宜金公路、新運河縱貫工業園南北,常溧公路緊靠工業園北側,工業園總規劃面積8平方公里,首期啟動面積4平方公里,實現了「七通一平」 ,是江蘇省示範工業區之一、無錫市重點工業園,其水陸交通便捷,投資環境優越,是投資創業的理想場所。
  5. Based on the characteristics of the buried culvert under west no. 4 ring road in beijing for south - to - north water transfer project, the arrangement of the monitoring points and the monitoring results are emphatically described, and then a verification is made for the availability of the excavation parameters of the culvert through the analysis of the monitoring results, which provides a guidance for the construction of the later - period

    摘要結合南水北調北京西四環暗涵工程施工特點,著重介紹了南水北調西四環暗涵工程施工期監測點的布置和監測情況,並通過對觀測成果的整理分析,對暗涵開挖施工參數的可行性進行了驗證,並為後期的施工提供了指導。
  6. Crop - water relationship and availability of field irrigation water based on swap model simulation were studied in two areas of a largest - sized irrigation district - hetao irrigation district in the western arid area of china respectively according to its unique characteristics of hydrology and water resources so as to provide a theoretical basis and technical support for its water - saving transformation and agricultural sustainable development. the results can also be applied to other areas with similar natural and agricultural conditions

    本文針對我國西部乾旱區的特大型灌區?河套灌區所具有的獨特水文水資源條件,選擇兩個典型區域分別進行了作物-水分關系和基於swap模型模擬的田間灌溉水有效性研究,以揭示和確立水分對乾旱區作物產量的影響和量化表達與淺地下水位灌區農田水分運移轉化規律和灌溉水對作物生長利用效率的評價方法,為河套灌區以節水為中心的技術改造和可持續發展提供理論基礎和技術支撐。
  7. Finally, two examples show that, the availability and practicability of the new model is verified. the analysis of calculation result of berthiervill test embackment shows different part of compression curve have different influence upon the course of consolidation, and correct coefficient and viscous effect have great significance on deformation forecast. associated with the wenzhou airport runway engineering, the reason of increasing of pore - water pressuer in under - lying soft layer and post - construction settlement are given

    最後,通過兩個工程實例的分析來說明本文模型的有效性和實用性:一是對berthiervill填土試驗場的軟基實測數據和理論成果進行對比分析,闡明考慮結構性擾動和粘滯性效應對分析天然粘土固結壓縮性的重要性;二是對溫州機場袋裝砂井超載預壓工程進行數值模擬,指出停荷預壓期間下臥層孔壓增加和工后沉降大的原因。
  8. A further reduction in the availability of electricity and water would exacerbate existing problems - such as the insufficient supplies of clean water for drinking and personal hygiene, inadequate sewage treatment and waste disposal, and the spoiling of already scarce food and medicines, due to the inability to refrigerate them

    電力和民生用水再減少的話,將惡化現行之各種問題,例如乾凈的飲用水不足及個人衛生不佳、污水和廢棄物處理不當,以及因為無法冷凍使得本來就稀少的食物和藥品腐壞等等。
  9. Special attention should be put on the texture of the soil ground, availability of water, and the degree of shading where the string was set

    這與繩子擺放處的土壤結構或地質水份的多少和樹蔭覆蓋的范圍有關。
  10. China planned to extend the availability of drinking water, electricity and telephone lines to herding communities and build a railway from the regional capital lhasa to xigaze, the remote himalayan region ' s second - largest city

    中國計劃擴展飲用水、電力和電話線到牧區,並計劃修建一條從省會拉薩到喜瑪拉雅地區第二大城市日喀則的鐵路。
  11. In other words, it adopts the principle of main prevention and planned examination to enhance the equipment reliability. in the water power station, whether mechanical equipments maintenance or electric equipments maintenance, the planned maintenance is adopted in the whole of maintenance in order to accomplish the production - reliability target for increasing economy benefit. the production - reliability target includes fof ( forced outage factor ), eaf ( equivalent availability factor ), po ( times of planned outage ), uo ( times of unplanned outage ) etc

    在水電廠,不論機械設備還是電器設備,幾乎都是採用固定周期的檢修或更換的處理方法預防事故的發生,完成發電企業確定的可靠性生產指標:提高機組的等效可用系數,降低強迫停運次數,減少機組的非計劃停運次數(次/臺年)等,從而提高企業的經濟效益。
  12. Gives information about water availability, quality, and uses

    -探討水資源與地方環境。
  13. Trends and concept of water resources and research on time of water availability

    水資源及其內涵的研究現狀和時間維的探討
  14. This was due to human activity and water availability. human activity disrupted the structure of the herb community

    對處于同一坡面的同一類型草地植物群落而言,坡下的生物量和生產力大於坡上。
  15. And food production is restricted by water availability and water quality while songhua river basin supports the only soil belt in china

    糧食產量受到水量、水質的約束,松花江流域提供了唯一的土壤帶。
  16. According to ministry of water resources statistics, china is in bad need of water - water availability per person in the country is only 2, 200 cubic metres, or about enough for a shower for 5, 500 people

    根據水資源部門統計,中國嚴重缺乏水,全國人均水擁有量僅為2200立方米,或者說大概只夠5500人洗次澡。
  17. Based on a comparative study of the social economic development and the water resources characteristics in 13 arid inland basins of north - western china, it is pointed out that oasis will move from lower reach to upper reach in the circumstances of lower water availability per capita and poorer social economic structures

    摘要本文在對中國西北13個內陸河流域水資源稟賦和社會經濟發展狀況進行對比研究的基礎上,指出在人口不斷增長和社會經濟結構不適宜的情況下,人均水資源量的不斷減少,將導致流域內綠洲重心逐漸從下游向中游、上游遷移。
  18. In view of improving the efficiency of fertilizer, we paid more attention to the effect of water dynamic process and strength on nutrient availability. in this research, by model test, four kinds of agricultural soils were studied, concerning about the effect of drying - wetting alternation and temperature on potassium availability, ions " diffusion in soils under different levels of water content, and the distribution coefficient of potassium between solution and soil phases

    因此,本研究通過室內模擬土壤水分的動態變化,對水分變化的過程(干濕交替不斷進行)和變化強度對養分有效性的影響,不同水勢狀態下養分離子在固、液相間的分配關系,以及不同水分條件下養分的擴散遷移規律等方面進行了探討。
  19. The present paper deals with the principle, instrumental equipment and working process of this technique and, with two examples, illustrates the availability of this technique in water exploration

    本文簡述了該方法的原理、儀器及工作過程,並給出了兩個應用實例來說明該方法的應用效果。
  20. The present paper deals with the principle and instrumental equipment of this technique and, with the test result of numis system in a certain area of henan province as an example, illustrates the availability of this technique in water exploration

    本文論述該方法的原理、儀器裝備,並以numis系統在河南某地試驗結果為例,說明本方法找水的有效性。
分享友人