Waterlogged soils occur in areas that are flat or have poor drainage.
涝渍土壤发生在地势平坦或排水不畅的地区。
Flat sites can present serious problems for the drainage of waste and storm water.
地势平坦的地点可能会有污水排放和暴雨后积水的严重问题。
When the Banks have been crested, the surrounding land becomes the river, with he water moving across flat land in a sheet, toward whatever is the drainage point.
当河岸的顶部被洪水淹没之时，周围的土地就变成了河流，河水成片地朝着平坦的地势流动，无论何处都成了排水点。
As the terrain in plain region is flat, the topographical height difference for the drainage pipeline cannot be utilized so as to cause the pipelines in the lower reaches are buried too deeply.
平原地区由于地势平坦，排水管道往往无地形高差可以利用，造成下游管道埋深过大。
The invention discloses a flat strip-shaped drainage device which is applied to the operation implantation at the pars plana of a ciliary body to treat the refractory glaucoma.
一种适用于睫状体平坦部手术植入，治疗难治性青光眼的扁平条状引流器。
Method of modifying existing DEM by adding a small value can produce more realistic drainage pattern rather than parallel flow over flat surface.
在地势平坦地区，采取在原DEM上加微小修正值的办法，可以得到理想的模拟结果。
A flat roof has poor drainage.
平的屋顶排水差。
Analysis on Flow Characteristic of Flat-Walled Diffusers applied in Valveless Piezoelectric Pumps [J]. Journal of Drainage and Irrigation Machinery Engin, 0, : 7 -.
无阀压电泵用平面锥管内部流动特性分析[J]。排灌机械工程学报，0，：7-。
For impact factor of raw materials, the dissertation focuses on the asphalt type, coarse aggregate type and flat and elongated particle content on drainage asphalt mixture performance.
原材料影响因子方面，重点研究了沥青类型、粗集料类型与针片状含量对排水沥青混合料性能的影响。
Method combining DEM with stream network leads to a more accurate drainage network from surface runoff modeling, especially for flat area. Method of modifying existing DEM by add…
水系图与DEM结合的方法可以消除径流模拟结果与现有水系不吻合的现象，有效提高径流模拟精度。
Method combining DEM with stream network leads to a more accurate drainage network from surface runoff modeling, especially for flat area. Method of modifying existing DEM by add…
水系图与DEM结合的方法可以消除径流模拟结果与现有水系不吻合的现象，有效提高径流模拟精度。
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