The initial act spared eight rivers and narrow buffer zones around them from DAMS and development.
最早的这个条例挽救了八条河流并缩小了围绕它们的大坝和开发地区的缓冲地带。
The initial act spared eight rivers and narrow buffer zones around them from DAMS and development. Today the list has grown to more than 200 rivers in 39 states and Puerto Rico.
法案最初仅保护八条河流及其周围狭窄的缓冲带不得筑坝和开发，如今这一保护名单已经增加到39个州的200多条河，还包括波多黎各。
Building these dams provided cheap electricity, created jobs for workers, stimulated regional economic development, and allowed farming on lands that would otherwise be too dry.
修建这些水坝可提供廉价的电力，为工人创造就业机会，刺激了地区经济发展，并允许在否则将过于干燥的土地上进行耕种。
Ethiopia has staked its development on damming the Blue Nile and other rivers. In west Africa dams are due to be built on the Niger, the Volta and Bandama.
在西非国家，很多的大坝都要建造于尼日尔河、沃尔特河与班达马河上。
Many researches on the mechanism of earth-rock DAMS due to overtopping failure and the process of break development have been carried out, but few involves the mechanism of clay core DAMS.
国内外针对土石坝漫顶破坏机理和溃决过程开展了大量的研究工作，但针对黏土心墙这一土石坝主要坝型溃决机理及溃决过程的研究工作却开展的很少。
We make a lot of changes to our catchments including land clearing, urban development, DAMS, and so on that can change the impact of a flood on the natural environment.
人们修整土地、扩张城市及修建水坝等活动，使我们生活的那些流域发生了很大的变化，同时也会改变洪水对自然环境的影响。
We make a lot of changes to our catchments including land clearing, urban development, DAMS, and so on that can change the impact of a flood on the natural environment.
人们修整土地、扩张城市及修建水坝等活动，使我们生活的那些流域发生了很大的变化，同时也会改变洪水对自然环境的影响。
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