irrigation border 中文意思是什麼
irrigation border
解釋
灌溉擋水田埂- 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。
- border : n 1 邊，緣，邊沿，框。2 邊界，國界，國境，邊境；邊地；領地。3 （女服的）滾邊，布邊；（印刷品等的...
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On this basis, the method for determination of reduced infiltration rate coefficient from irrigation data of surgeflow border irrigation is deduced
實例計算表明，這些方法能簡單而有效地求得田間土壤平均入滲參數和減滲率系數。 -
Due to the underdevelopment of economy, traditional surface irrigation such as border and furrow irrigation is still taken as the dominant way in farmland irrigation, which leads to the great waste of water resources. therefore, how to apply a new theory to study and improve surface irrigation technique in order to increase water use efficiency and water productivity in farmland, has become a key project in water - saving research of agriculture today
然而，由於經濟欠發達，我國農田灌溉仍以傳統的畦、溝地面灌溉技術為主，水資源浪費現象還比較嚴重，因此，如何運用新的理論研究和改進地面灌水技術，提高農田水分利用效率和水的生產效率，已成為當今我國農業節水研究的重點課題。 -
In addition, this paper selects the water traveling wave model of the surface irrigation, and realizes the modeling of the water movement, according to the water movement characteristics of surface irrigation. furthermore, the optimization model for irrigation effects is used to produce the calculation pattern in which the water movement model is combined with optimization of technical parameters of irrigation. therefore, it is realized that the optimum unit discharge is calc ulated under the condition of definite length and slope of border check and the optimum length of border check is calculated under the condition of definite unit discharge and slope
與此同時，在分析項目區耕作條件下灌溉水流運動特點的基礎上，選擇地面灌溉水流運動波模型，實現了地面灌溉水流運動的數值模擬，並利用灌溉效果優化模型，構造了地面灌溉水流運動模擬與灌水技術參數優化相結合的計算模式，實現了定畦長、定坡降條件下的優化單寬流量求解和定單寬流量、定坡降條件下優化畦長的求解，為變灌水條件下優化灌水技術參數的確定提供了強有力的工具。
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