lower reaches (of a river) 中文意思是什麼

lower reaches (of a river) 解釋
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  • lower : adj 〈low 的比較級〉1 較低的。2 下級的，低級的。 lower animals 下等動物。3 南部的。 in lower Manh...
  • of : OF ＝Old French 古法語。
  • a : an 用在以母音音素開始的詞前〉 indefinite art 1 〈普通可數名詞第一次提到時，冠以不定冠詞主要表示類...
  • river : n 1 河，江。 Rriver Thames 或 the R Thames 泰晤士河； the Hudson R 〈美國〉哈得孫河。 the Rriver ...
  1. ( 4 ) enhancing the downriver cofferdam will make the lower reaches of a river dissipate more energy. however, it will increase erosion and the protection will be more difficult

    抬高下游圍堰可以使下游分擔更多的消能任務，減輕壩區的沖刷和消力池的消能負擔。
  2. Some particular measures to be taken are as the followings : ( 1 ) to establish a uniform harmony mechanism in the river basin in order to have a general plan for wetland protection and utilization ; ( 2 ) to combine the existing protection districts according to lake drainage area and species distribution, and to construct new wetland protection region in order to solve problems in management districts ; ( 3 ) to develop wetland restoration and reconstruction ; ( 4 ) to carry out reforesting in formerly cultivated land and to construct shelter forest of the yangtze river in order to control soil erosion and to preserve the water resource ; ( 5 ) to protect and utilize reasonably the wetland resources in the middle and lower reaches of the yangtze river ; ( 6 ) to strengthen the research of wetland science

    具體可採取以下措施：在流域內建立統一協調機制，對流域濕地進行保護與合理利用，合理布局，統一規劃；按湖泊流域和物種分佈整合現有保護區，建立新的濕地保護區，解決目前管理上的制約問題；大力開展濕地修復重建；推進退耕還林、長江防護林等工程建設，發揮森林治理水土流失、涵養水源的作用；在保護的前提下科學合理地利用長江中下游濕地資源，開拓新的生產力；同時加強濕地科學研究。
  3. The ncep / ncar global reanalysis data about 55 yean ; ( 1948 - 2002 ), the observed data about 2 years ( 1999 - 2000 ), the meiyu data in the mid - lower reaches of the yangtze river and the precipitation data at 160 stations in china duing 1951 to 2000 are used in the paper. we present a preliminary study on the relationship between the precipitation total for meiyu and the summerly precipitation in the eastern side of the northwest china. then using nonhydrostatic version mm5 with one nested grid, the effect of the circulation patterns for meiyu on the summerly precipitation in the eastern side of the northwest china was simulated by numerical simulation of full physics

    本文採用1948 2002年ncep再分析資料、 1999 2000年的全球地面、高空觀測資料、 1951 2000年梅雨以及全國降水量資料，初步研究了長江中、下游地區梅雨事件與西北地區東部夏季降水的聯系，並用mm5中尺度非靜力模式模擬了多（少）梅雨環流型對西北東部夏季降水的影響；另外，還分析了梅雨與四川盆地、東南沿海地區夏季降水的聯系。
  4. The ditches are the first pool of diffuse nutrients from rain runoff and field drainage, and are shaped to a net work in the area of the lower reaches of the changjiang river where the cultivation manner of fields are rotation of rice and wheat. now we have learnt little about the mechanisms of pollutants trasport and transformation in ditch wetlands

    長江下游水稻-小麥輪種區溝渠濕地呈網路狀密集分佈，是降雨徑流和農田排水的首要匯聚地，我們對污染物在溝渠濕地中遷移轉化的機理還知之甚少，本文分析了： 1
  5. According to the analysis of the beach distribution, landforms and structure of flood land, hydrologic geology and bad geological phenomena in the middle - lower reaches of yangtze river, this paper comprehensively studies the environmental geological conditions for harbour construction in the banks of yangtze river. discussed are the relation between inner material component and rock system beheath in the beach. presented are beachs structure and the category and the behaviour of groundwater, and offers a scientifis basis for harbor construction

    論述了長江中下游漫灘分佈特徵及其成因，分析了漫灘微地貌及其相關沉積物的地質特徵，從漫灘內部物質組成及其下覆巖系關系，全面地論述了漫灘的結構特徵，闡述了地下水的類型及動態，以及由此引起的不良地質現象，為長江中下游港口工程建設提供了地質依據
  6. The typical sightseeing of south of the lower reaches of the yangze river, visiting west lake with the boat floating on river and a boatwoman as companion , once was the spirit of west lake landscape culture

    「一葉扁舟浮行水面，一位船娘相伴遊湖」 ，這般獨具江南靈氣的風景曾是西湖山水文化的點睛之筆。
  7. Compared with the 1960s, the sunshine percentage of 1990s decreased in the middle and lower reaches of the yellow river, and increased a little in the upper reach

    對日照百分率氣候變化的空間分析表明，除極少數臺站的日照百分率呈略有上升趨勢外（主要出現在流域上游） ，黃河流域日照百分率的下降表現得非常明顯，遍布整個流域的中、下游。
  8. A durative heavy rainfall process occurred on the middle and lower reaches of yangtze river in lat junl999. lt was just during the period of the operation of hubex experiment which provided a great deal of intensive rainfall data and upper - air sounding data. so it is a good chance for us to do research on the mei - yu front and low

    1999年6月下旬在長江中下游出現了梅雨期的持續性暴雨，並且正值hubex試驗期間，獲得了很多加密觀測降水及探空資料，為我們提供了良好的研究梅雨鋒和低渦的機會。
  9. A discussion of recharge sources of deep groundwater in the ejin basin in the lower reaches of heihe river

    黑河下游額濟納盆地深層地下水來源的探討
  10. In this passage, author has studied the quota of irrigation that can make water used economically for various plants, if the irrigation quota can be lowered from 6795 m3 / a to 4500 m3 / a during the processes of irrigation, there will be a saving water amount of 3. 386million m3 / a, in shiyang river basin. there is no doubt that we can open the second source of river water that can provide the possibility of transporting 300 million m3 / a water amount to lower reaches of the river. in this paper, there are some analysis and prospects for the future situation of supply and demand of water resources in 2010

    民勤水資源減少的主要原因是人為因素，如全流域人口增加、中上游耕地面積擴大，用水量增加，造成灌區重心上移；沒有樹立可持續發展觀，在經濟中搞短期行為；對石羊河流入民勤水量不斷減少、地表水、地下水轉化活躍、生態用水問題突出等方面進行了分析論證；對目前開發利用現狀、供需狀況進行了較為詳細的計算和評價；通過對各種農作物節水灌溉定額的研究，若從現狀灌溉定額6795m ~ 3 ha降低到4500m ~ 3 ha實施灌溉，石羊河流域將節水3 . 3867億m ~ 3 ，這無疑于開辟了第二水源，提供了向下游調水3億m ~ 3的可能性。
  11. The binhai new area, as the zone is called, is intended to help a swathe of northern china, including the capital, beijing, and the provinces around the bohai gulf ( see map ), enjoy the same kind of economic boom generated by shenzhen in the pearl river delta and by shanghai in the lower reaches of the yangtze

    這塊區域稱作濱海新區，被寄望帶動包括首都北京及環渤海灣省份的中國北部的增長（見地圖） ，以起到像深圳于珠三角及上海于長江下游一樣的經濟龍頭作用。
  12. ( 4 ) the running state and hydraulic property of the hydraulic automatic tilting gate with connecting lever and rolling wheel were analyzed. the open - door curve, start - up water level and shutdown water level were ascertained, then the influence of lower reaches of a river to the running of a tilting gate was analyzed

    （ 4 ）析闡述了連桿滾輪式水力自動翻板閘門的工作狀態與水力特性，推求了閘門的開門曲線、啟門水位和回關水位，並分析了下游水位對翻板閘門運行的影響。
  13. Zhangjiagang zhongtian precision molding co., ltd. a civilian enterprise, specializes in molds for plastic products, hardware, precision diecasting, injection molding, etc. it ' s located in zhangjiagang city, an industrial city near port in the lower reaches of china ' s gold waterway of yangtze river. zhangjiagang enjoys extremely convenient transportation both in water and land, with shanghai to the nearest, bounded with the yangtze river in the north with nantong port on the other bank, adjacent to suzhou and wuxi in the south

    張家港中天精密模塑有限公司是一家以生產塑料製品、五金製品、精密壓鑄、注塑模具的民營企業，公司地處中國「黃金水道」長江下游的港口工業城市?張家港市，東臨上海，北依長江，與南通港相對，南與蘇州、無錫接壤，水陸交通十分便利。
  14. By using the data of 17 stations " precipitation in middle and lower reaches of yangtze river and the ncep ' s daily 500hpa height, this article using the chosen criterion of meiyu ascertains the initial and final date of meiyu after choosing out a credible criterion in some existing criterion of meiyu

    本文主要應用中國長江中下游17站降水和ncep的逐日的500hpa高度場資料，在研究了現有的一些梅雨標準之後，選定了相對可信的梅雨標準並確定了梅雨的起始日期。
  15. Shaoguan is an important road transportation hub in south china, an important land passage between the north of china, the middle and lower reaches of changjiang ( yangtze ) river and south china coast, and a traditional commodity distribution center in the border area of the three provinces of guangdong, jiangxi and hunan

    韶關是華南地區重要的公路交通樞紐，是中國北方及長江中下游地區與華南沿海之間重要的陸上通道，粵贛湘3省交界地區傳統的商品集散中心。
  16. From the angle of uncertainty of inflow and water consumption, the risk of water dispatching on the lower reaches of the yellow river is analyzed. inflow series are generated by use of the method of representative disaggregation. water consumption series are generated according to rainfall probability distribution. a model for risk analysis of water dispatching is established with the technique of stochastic simulation, and a quantitative description of risk is presented, thus, making the water dispatching decision - making more scientific

    從來水和用水不確定性角度分析黃河下游水量調度風險.對來水採用典型解集方法生成來水系列，對用水根據降雨概率分佈生成用水系列，利用隨機模擬技術建立了水量調度風險分析模型，給出風險的定量描述，從而使水量調度決策更加符合實際
  17. Using the methods of reof analysis, the summer precipitation from 43 stations over eastern china for the periods 1901 - 2000 was examined. the summer rainfall anomaly over eastern china has three mostly spatial distribution patterns, that is the pattern a, b. c. the anomaly center of pattern a lies south china and southwest china. the anomaly center of pattern b lies the middle and lower reaches of yangtze river and huaihe river reaches

    本文對東部43站1901 - 2000年夏季降水進行reof分析，得到三種分別以華南、西南地區，長江中下游及江淮地區，華北北部及東北西南部地區為主要的降水異常區的異常分佈型，並分析這三種分佈型的主要異常區夏季降水所具有不同的年際、年代際變化及其突變特徵。
  18. The influence of cutting infiltration to groundwater surroundings by impermeable wall of dike in middle - lower reaches of yangtze river is abroad, and also is a long process

    長江中下游堤防防滲墻截滲對地下水環境的影響涉及范圍較廣，同時也是一個長期的過程。
  19. The difficulties of this problem are as follows : there is a grate discrepancy of geology condition of dike in middle - lower reaches of yangtze river, the facts which affect groundwater power field and water chemistry field not only include geologic structure of dike, topography and river network, precipitation infiltration and evaporation condition, but also are closely related to the design scheme of impermeable wall, construction method and construction quality

    本課題研究的難點在於長江中下游堤基工程地質條件差異較大，影響地下水動力場、水化學場的因素不僅與堤基地質結構、地形與河網分佈、降水入滲及蒸發條件，而且與防滲墻的設計方案、施工工法及施工質量等密切相關。
  20. It reaches a conclusion that the lower reaches of yangtze river did play an important role in chinese civilization, whose unique pattern differed tremendously from other regions of the country

    認為長江下游在整個中國歷史文化進程乃至文明起源過程中，曾扮演過不同於其它地區的重要角色並有自身發展模式，為現代和未來的可持續發展提供了歷史鏡鑒。
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