collecting gutter

This paper analyses the drainage features of underground carport and determines corresponding drainage plan based on it,and expounds author s opinion on the calculation of discharge,the design of collecting gutter and collecting well and the selection of submersible trash pump.

并对排水量的计算 ,集水沟、集水井的设计 ,潜水排污泵的选择阐述了笔者的观点。

Effects of water retaining planting technique under ridge and ditch micro-collection on growth,photosynthetic rate and transpiration rate of dry-land foxtail millet;

垄沟集水种植对土壤有效蓄水量及谷子生长、光合特性的影响