1·Management mechanism or management system is the key factor in water saving in irrigation districts.
灌区节水的关键在于机制，在于管理体制。
2·The arid irrigation districts, which are in the northwest of the country, take on a greater significance for the local human society.
地处西北的干旱灌区对当地人类社会的意义更加巨大。
3·Sangganhe irrigation district on the upper reaches of Yongdinghe River is one of large-scale artesian irrigation districts in Shanxi province.
永定河上游桑干河灌区是山西省大型自流灌区之一。
4·Canal system planning is one of the important tasks in rehabilitation, corollary and water-saving reform planning of large-sized irrigation districts.
渠系规划是大型灌区续建配套与节水改造规划的重要内容。
5·The ease study has proved that partly developing the pure well irrigation is necessary, reasonable and successful in the Yellow River irrigation districts.
该文通过系统地分析研究，证明在引黄灌区内部分区域开展纯井灌是必要的、合理的、成功的。
6·The forecasting results of the case study has proved that the adaptive control exponential smoothing forecasting model suits water demand forecast in irrigation districts.
实例预报结果表明，把自适应指数平滑预报模型应用于灌区需水量预报中是可行的。
7·Aimed at the objective of high-efficiency use of water resources, the optimal water resources allocation among different irrigation districts and different crops in Kaifeng city are studied.
以水资源高效利用为主要目标，对开封市内各地区之间水量优化分配进行了研究。
8·The Hetao irrigation area can be divided into 4 suitable districts for sunflower planting, they are the best suitable, more suitable, suitable and basic suitable districts.
将河套灌区划分为最适宜、适宜、次适宜、基本适宜等4个向日葵种植区域。