soil moisture retention

• 土壤水分保持

soil moisture retention的用法和样例：

例句

1. Moisture is held in the center layer of the skin.
   水分保持在皮肤的中间皮层中。
2. Considering these phenomena, it is obvious that fertilizer is an essential component for an effective soil and water conservation programme on sloping lands.
   考虑到这些，很显然，在坡地土壤有效的土壤和水分保持计划中，肥料是一项重要的组成部分。