片语
impermeable layer on pond bottom池底防渗层
impermeable material layer不透水材料层
water-impermeable layer不透水层
clay impermeable layer黏土防渗层
impermeable barrier layer非渗透性隔层
impervious course不透水层
bottom m impermeable layer下封闭层
relative impermeable layer相对隔水层
HDPE membrane impermeable layerHDPE膜防渗层
impervious bed[矿业] 不透水层;非渗透层
bottom impermeable layer下封闭层