The auxiliary shaft topsoil adopted ordinary construction and drainages in hygrometric well.

屯留煤矿副筒表段采用普通法施工,利用外疏干。

Effect of nutrient management on selected topsoil characteristics of a basalt derived Ferralsol in Dak lak ,Vietnam.

表5 养分管理对达拉克(Daklak)种玄武岩发育的铁铝基本表层性质的影响 Table 5.

In loessal regions and alluvial valley fills of the western United States, both surface soil and subsoil are commonly friable.

在美国西部黄区和冲积河谷里，表和底是容易破碎的。