The topsoil has been almost completely washed away.
层
壤已差不多完全
冲走了。
(层)；耕作(层)The topsoil has been almost completely washed away.
层壤已差不多完全冲走了。
The auxiliary shaft topsoil adopted ordinary construction and drainages in hygrometric well.
屯留煤矿副井井筒
采用普通法施工,利用井外降水井疏干降水。
Effect of nutrient management on selected topsoil characteristics of a basalt derived Ferralsol in Dak lak ,Vietnam.
5 养分管理对达拉克(Daklak)一种玄武岩发育的铁铝基本些层性质的影响 Table 5.
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