Install a flush toilet with small pondage.

安装一个贮水量小抽水马桶。

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

发作物对梯土壤水分利用，以及蒸发散原因，导致水平梯土壤贮水量比休闲坡地小。