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- Then selects the vegetation, impervious surface and shade as endmembers and monitoring the urban compositon using a constrained linear spectral mixture analysis on the normalized reflectance image. 然后选取了植被、不透地表和阴影三种组分，对归一化反射率图像使用限制的线性光谱混合分析来研究城市组成。
- The subdivision was built using cluster development.It uses open swales for stormwater conveyance and treatment, and it has a lower percentage of impervious surface than conventional developments. 这个分部是以群集开发的方式建筑，它利用沼泽的开放地来引流及处理暴雨积水，不透水表面区域比传统社区开发方式要少。
- In contrast, impervious surfaces accumulate pollutants during dry periods and funnel high concentrations of the contaminants downstream when it rains. 相反的，不透水的地面会在乾季存积污染物，然后在降雨时将高浓度的污染物汇流而下。
- When planning new resorts, shopping centers, office complexes and residential subdivisions, the designers must minimize the use of impervious surfaces and maximize the amount of vegetated areas. 设计者规划新的旅游区、购物中心、办公大楼、住宅区的时候，必须将不透水地面的使用率降到最低，而尽量将有植物覆盖的地表面积提高到最大。
- Rubber boots are impervious to water. 橡胶鞋是防水的。
- This material is impervious to rainwater. 这种材料防雨。
- URBAN IMPERVIOUS SURFACE ABUNDANCE ESTIMATION IN BEIJING BASED ON REMOTE SENSING 北京城市不透水层覆盖度遥感估算
- The gas bubbled to the surface of the water. 气体变成气泡升上水面。
- The surface of the liquid gradually crusted over. 液体表面渐渐地结了一层皮。
- A breeze ruffled the surface of the lake. 一阵微风吹皱了湖面。
- Impervious Surface Coverage in Urban Land Use Based on High Resolution Satellite Images 基于高分辨卫星影像的城市用地不透水率分析
- Effect of impervious surface on stormwater runoff pollution in urban tourist attractions 城市旅游区暴雨径流污染过程中的不透水面效应
- A wave broke across the surface of the pool. 一个波浪从池水表面掠过。
- The calm water surface is very much like a mirror. 那平静的水面十分象一面镜子。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- Keywords Shanghai;runoff pollution;impervious surface;event mean concentrations（EMCs）; 上海市;径流污染;非渗透性地表;事件平均浓度;
- He is honest only on the surface. 他只是表面诚实而已。
- A film of mucus and bacteria on a tooth surface. 齿菌斑牙齿表面一层粘液和细菌的膜
- The hard outer portion or surface area of bread. 面包皮面包的表面区域的硬皮
- This material is impervious to gases and liquids. 气体和液体都透不过这种物质。
