As Earth gets increasingly crowded and polluted, some 225 million square miles of prime real estate representing 71 percent of the planet's surface is largely unused.
地球人口持续膨胀以及环境恶化，大约2亿2千5百万平方英里的房地产，也就是地球71%的表面是被闲置的。
The waters of the lake have become polluted resulting in large Numbers of dead fish floating on its surface and the stench of rotting fish is keeping tourists away.
湖水遭到污染，导致大量死鱼浮上水面，成片腐烂的尸体让游客避而远之。
Not until some dead fish floated to the surface of the river did the villager that the river had been polluted so seriously.
直到一些死鱼浮到水面上，村名们才意识到这条河已经受到如此严重的污染。
The partial arc may derive from the surface of polluted insulator string and form the air gap arc during the pollution flashover process at low air pressure.
低气压下绝缘子污闪放电过程中局部电弧存在飘离绝缘子表面形成空气间隙电弧的现象。
The effectiveness of enhanced coagulation of polluted surface water with high organic contents by permanganate composite chemicals has been studied through laboratory jar test.
用高锰酸盐复合药剂强化混凝处理，对受高浓度有机物废水污染的地表水进行了试验研究。
Conclusion Cellulose-degrading bacteria can be isolated from decayed leaves, surface soil and polluted water bodies under room temperature.
结论从腐烂的树叶、腐烂树叶下的表层土壤和污染水体中均能分离出常温下具有纤维素酶活性的菌株。
The result indicates that the pollution of surface water in Liaohe river basin is mainly the organic pollution, the point source polluted is weighter than the surface pollution.
结果表明：辽河流域地表水水质污染以有机污染为主，点源污染重于面源污染。
The water environment of Beijing is not pretty well, the surface water and ground water have been polluted to different degree.
北京市目前的水环境状况不容乐观，地表水和地下水都受到了不同程度的污染。
The groundwater is utilized in excess. The surface water is seriously polluted. The eligible rate of drinking water source is 90.8% in Shijiazhuang.
石家庄市饮用水水源的水质合格率为90.8%，自来水和污水处理成本不断增加导致水价持续上涨。
The results can provide a scientific basis for the treatment and use of surface less-polluted water.
为地表微污染水资源的深度处理和利用提供科学依据。
The surface water resources is most polluted so the people depend on groundwater more and more extent.
现在，地表水水源普遍受到污染，人类对地下水的依赖程度不断增加。
The surface water resources is most polluted so the people depend on groundwater more and more extent.
现在，地表水水源普遍受到污染，人类对地下水的依赖程度不断增加。
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