A sump pump can drain a low-lyingarea and divert water to another location where it can drain properly.
阿水坑泵可以排水沟的低洼地区，调水到另一个位置，它可以排水正常。
2
The fluid accumulates in the low-lyingarea of the pipeline, which will lead to low efficiency of transmission and may also form hydrate.
液体聚积在管线的低洼处，会导致输送效率下降，也可能形成水合物。
3
Rain Court usually built in low-lying areas, through the replacement of natural soil or artificial soil and planting green plants, small area elimination on the convergence of the initial rain.