柯林斯英汉双解大词典
hardpan /ˈhɑːdˌpæn/
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1.
N a hard impervious layer of clay below the soil, resistant to drainage and root growth 硬质地层
双语例句
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Prices have reached (the) hardpan.
物价已经降到了最低点。
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The limestone–and–clay and sand-and-clay soil over a hardpan and iron–dross subsoil allows excellent draining.
庄园粘土层上的石灰石泥和沙泥土以及心土钢渣形成了很好的排水。
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For the need of earthquake microzonation some studies on the dynamic properties of hardpan in west Anhui were conducted.
本文结合地震小区划的需要对皖西硬粘土的动力特性进行了一些研究。
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