soil leaching

例句：

1. 1.To prevent soil leaching, the soil should be kept dry during the rainy season.
   为了防止土壤淋洗，在雨季期间应保持土壤干燥。
2. 2. The farmer used to use a chemical to soil leaching the fields.
   这位农民过去常用一种化学物质来防止土壤淋洗农田。
3. 3.Soil leaching is a process that removes harmful substances from soil.
   土壤淋洗是一种从土壤中去除有害物质的过程。