Install a flush toilet with small pondage.

安装水量小的抽水马桶。

This research discovered that soil pondage of level terrace were less than fallow sloping filed because of crops’ absorbing and using, and evaporation.

发现由于作物对梯土壤水分的吸收利用，以及蒸发散的原，水平梯的土壤水量比休闲坡地小。