短語詞組短語Impervious Surface Area 不透水地表;不透水層面積的proportion of impervious surface 非滲透面比例Impervious surface coverage 不透水率impervious surface ratio 不滲透地面比例urban impervious surface 城市不透水層impervious surface index 硬化地表指數(shù) 返回 impervious surface