网络释义专业释义英英释义
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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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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The study provided the variation range of paddy field hardpan roughness and the effective frequency of the hydraulic copying system.
试验研究提供了水田沟底不平度变化范围以及可以实用的插秧机液压仿形系统的仿形频次。
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