surface water drainage的意思|示意

Under field conditions, surface runoff, water infiltration, and drainage should be taken into consideration when designing water demand for crops.

在田间条件下，设计作物需水量时还应考虑地表径流和水分的渗漏与下渗的情况。

If the water table intersect the land surface, groundwater will flow out onto the surface at springs, whether to be collected there or to subsequently flow farther along a drainage.

如果地下水位与地表相交，地下水将在泉水处流出地表，聚集于此或是随后沿着排水系统进一步流动。

Removal of surface water from the road or street is known as surface drainage.

从道路或街道排除表面水被称为地表排水。

Subsurface pipe drainage in drought-prone region is superior to surface drainage in draining off water and salt, controlling ground water-level, and increasing crop output, etc.

以明沟排水为对照，论述了内陆干旱重盐碱区暗管排水在排水排盐、控制地下水位、提高土壤脱盐效果及提高作物产量等方面的优越性。

If no drainage system exists, the water table rises, bringing dissolved salts to the surface.

如果没有排水系统，地下水位就会上升，把溶解的盐带到地表。

In this case, the water table is not flow surface and there is no "seepage surface" on the side walls of drainage river channel.

该条件下的潜水位面不是流面，在排水河渠边壁也不存在所谓的“渗出面”。