The auxiliary shaft topsoil adopted ordinary construction and drainages in hygrometric well.
屯留煤矿副
表土段采用普通法施工,利用外降水疏干降水。
The auxiliary shaft topsoil adopted ordinary construction and drainages in hygrometric well.
屯留煤矿副表土段采用普通法施工,利用外降水疏干降水。
In loessal regions and alluvial valley fills of the western United States, both surface soil and subsoil are commonly friable.
在美国西部黄土区和冲积河谷里，表土和底土一般是
易破碎的。
Effect of nutrient management on selected topsoil characteristics of a basalt derived Ferralsol in Dak lak ,Vietnam.
表5 养
管理对达拉克(Daklak)一种玄武岩发育的铁铝土基本些表土层性质的影响 Table 5.
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