irrigation number 中文意思是什麼

irrigation number 解釋
灌水次數
  • irrigation : n. 1. 灌溉；水利。2. 【醫學】沖洗（法），〈pl. 〉沖注洗劑。adj. -al ,-ist n. 灌溉者，水利專家。
  • number : n 1 數；數字；〈pl 〉算術。2 （汽車等的）號碼；第…，第…卷，第…期〈通常略作 No （復數 Nos ），用於...
  1. Collecting a large number of atmosphere, soil and irrigation water, using the method of monomial and composite pollution exponent, the general situation of grain early warning is studied and a grain early warning system is built

    本文從糧食生產過程中的大氣、土壤及農田灌溉水出發，運用單項污染指數與綜合污染指數相結合的評價方法進行糧食生產的預警研究，構建了糧食本底安全預警系統。
  2. Mainly, the type of pump in the large - scale irrigation and drainage pumping station in our country is adjustable - blade propeller pump. we can regulate the pump ' s blade mounting angle following the variation of water level at the inlet and outlet of the station in order to control the discharge of pump, we also determine the number of running machines with machine ' s optimal combination. so we can reduce its energy consumption, and make it optimally and economically run

    我國大部分大型電力排灌站所安裝的泵都為可調節葉片的軸流泵，這一有利條件使我們可以根據排灌站進、出口水位的變化來調節水泵的葉片角度，控制水泵的流量，併合理的確定開機臺數，通過機組間的優化組合，使整個泵站的能耗最少，達到整體最優、經濟運行的目的。
  3. In making use of the drainage as resources, there are several advantages : 1 ) there already exist a certain number of drainage networks which are not very difficult to extend and remold : 2 ) deserts can be used as object for drainage utilization ; 3 ) the drainage is still barely suitable for irrigation of salt - tolerant plants

    在塔里木河幹流，農田排水資源化利用有如下幾個有利條件： （ 1 ）農田排水有一定數量且渠網的延伸和改造難度不大； （ 2 ）荒漠可作為農田排水資源化利用的場所； （ 3 ）農田排水仍可勉強適于耐鹽植物生長。
  4. With the completion of a number of water conservancy projects and the betterment of large tracts of low yielding land, an additional 22, 000 hectares of farmland, pasture and woods are assured of irrigation, making it possible to produce an additional 5 million kilogrammes of grain, 500, 000 kilogrammes of vegetables and 300, 000 kilogrammes of meat. besides, a total of 5, 500 hectares of land has been afforested

    隨著工程中一批水利項目和大量低產田改造完成，目前已增加2 2萬公頃農田、草場和林地保灌面積，形成年增產50o萬公斤糧食、 50萬公斤蔬菜、 39萬公斤養畜肉類的綜合能力，工程造林的55oo公頃。
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