短語詞組短語expansive clay embankment 膨脹土路堤weak expansive clay 弱膨脹土expansive clay subgrade 膨脹土路基expansive clay soil 膨脹土expansive clay mineral 膨脹性粘土鑛物expansive clay pressure 膨脹土壓力expansive clay slope 膨脹土塹坡replacing expansive soil with clay 換填黏土expansive -contractive red clay 脹縮性紅黏土 返回 expansive clay