Shallow buried-tunnelling method was used in the construction of high discharge pressure culvert for the first time and developed a new construction method in urban water distribution project.
在设计中将浅埋暗挖技术首次应用于大流量有压输水暗涵，进一步拓展了适用于城市输水工程的工程技术手段。
2
Base on the relationships between nutrient concentration and waterdischarge and time, temporal models of nutrient transport can be built.
根据营养盐含量与流量的关系以及含量随时间的变化的关系，可以建立它们输送量的时间变化模型。
3
At the same time this paper discussed the relation between water and soil conservation and break-off discharge in the Yellow River, dried soil layer.