Once the regulations are final, the industry would have three years to comply by taking steps such as installing pollution control devices or changing ingredients or fuels.

一旦此项法规最终定稿，水泥行业将有三年的时间，通过安装污染控制装置，或者更换原材料或燃料等措施逐步实现达标。

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Federal environmental regulations require that coal and oil-fired power plants use pollution control technology to decrease their sulfur dioxide emissions.

联邦环境法规要求煤炭及燃油发电厂使用污染控制技术以减少二氧化硫排放。

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A port operator shall, in accordance with the laws and regulations concerning environmental protection, take effective measures to prevent and control pollution and hazards to the environment.

港口经营人应当依照有关环境保护的法律、法规的规定，采取有效措施，防治对环境的污染和危害。

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But should he proceed with regulations to control pollution from existing coal-fired power plants, the single largest source of carbon pollution, those regulations probably will contribute to shuttering facilities already struggling to compete with cheap natural gas.

NPR: PROMISES, PROMISES: Climate Change

Tailpipe emissions standards are a much more important issue in California, which has them in place to control pollution from millions of cars, than in North Dakota, which does not have regulations.

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