topsoil的例句（topsoil在句子中的用法）

• This causes environmental damage when the topsoil is washed away by the rains. 雨水冲走表层土壤会造成环境破坏。
• The topsoil has been almost completely washed away. 表层土壤已差不多完全给冲走了.
• The auxiliary shaft topsoil adopted ordinary construction and drainages in hygrometric well. 屯留煤矿副井井筒表土段采用普通法施工,利用井外降水井疏干降水.
• A thin layer of topsoil was swept away. 薄薄的一层表土被冲走了。