它们甚至可以清洁所在的水域。
在国际海洋组织的规定下，从2012年起，所有船只在进入距离北美洲海岸370公里水域内时，必须使用清洁柴油。
Starting in 2012, under the International Maritime Organization's regulations, all ships within 370 kilometers of North America will have to use cleaner diesel fuel.
鱼类和其他野生动物似乎正逃离被漏油污染的墨西哥湾，聚集到沿岸清洁的水域避难，一些研究人员认为这一趋势可能是个不好的征兆。
Fish and other wildlife seem to be fleeing the oil out in the Gulf and clustering in cleaner waters along the coast in a trend that some researchers see as a potentially troubling sign.
之前的Rapanos案，将几个密执安州开发者以及一大片土地卷入其中，并且提出了这样一个问题：与水域相连接的湿地，何时可纳入清洁水法的保护范围。
That matter, known as the Rapanos case, involved a Michigan developer and a large tract of land, and turned on the question of when wetlands are connected to the waters covered by the clean-water law.
新加坡清洁和绿化已引起其他国家实现良好的公众卫生，洁净的空气和水域。
Clean and green Singapore has stirred other countries to achieve good public hygiene, clean air and waters.
新加坡清洁和绿化已引起其他国家实现良好的公众卫生，洁净的空气和水域。
Clean and green Singapore has stirred other countries to achieve good public hygiene, clean air and waters.
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