The prevention and suggestion is brought up it is important for a good drain system for preventing soil secondary salinization it can lowerer the underground water lever and ejecter the soil salt in order to adapt to douche and drain .
为了防止土壤次生盐渍化,良好的排水系统是非常重要的,它可以降低地下 水位和排出土壤盐分,做到 灌排配套。
美[ˈwɔtɚ duʃ]英[ˈwɔ:tə du:ʃ]
[医] 水冲洗