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transform irrigation district
相关语句
  灌区改造
     Based on this, a system dynamic planning model was built up to carry on vertical-lateral section optimization design to transform irrigation district channel. Comparing and verifying its merits through one instance, the study showed that this design method could reduce the engineering investment in large scale for irrigation district water-saving transformation project.
     在此基础上,建立渠道纵横断面设计的系统动态规划模型,对灌区改造渠道进行纵横断面优化设计,并通过实例比较证实,该设计方法可以大幅度节省灌区节水改造项目的工程投资。
短句来源
  相似匹配句对
     irrigation;
     灌水、地下水位埋深;
短句来源
     Impact and Transform
     冲击与蜕变
短句来源
     Transform of the Cupola
     冲天炉技术改造实践
短句来源
     Summary on Wastewater Irrigation
     污水灌溉研究综述
短句来源
     Study on the distribution of heavy metals and its transfer and transform in soil-plant system of sewage irrigation area
     污灌区土壤-植物系统中重金属分布与迁移转化特征研究
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Channel anti-seepage project is one of the important contents for water-saving transformation in irrigation district. In the water-saving transformation to ladder-shaped earth canal of key channel system in original irrigation district, the ladder-shaped section of curved slope foot was selected as section of canal. Because it has a lot of virtues, such as close to optimal hydraulic cross section, fine water condition, hight velocity of flow, ability to convey sand, effectual prevention from seepage, resist...

Channel anti-seepage project is one of the important contents for water-saving transformation in irrigation district. In the water-saving transformation to ladder-shaped earth canal of key channel system in original irrigation district, the ladder-shaped section of curved slope foot was selected as section of canal. Because it has a lot of virtues, such as close to optimal hydraulic cross section, fine water condition, hight velocity of flow, ability to convey sand, effectual prevention from seepage, resist of frost-heave performance. Based on this, a system dynamic planning model was built up to carry on vertical-lateral section optimization design to transform irrigation district channel. Comparing and verifying its merits through one instance, the study showed that this design method could reduce the engineering investment in large scale for irrigation district water-saving transformation project.

渠道防渗工程是当前灌区节水改造的重要内容之一,对原灌区骨干渠道系统的梯形土渠进行节水改造,其断面形式选用弧形坡脚梯形断面,其断面形式接近最佳水力断面、水流条件好、流速快、输沙能力强、防渗效果好、抗冻性能较高等优点。在此基础上,建立渠道纵横断面设计的系统动态规划模型,对灌区改造渠道进行纵横断面优化设计,并通过实例比较证实,该设计方法可以大幅度节省灌区节水改造项目的工程投资。

 
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