In 1990s, it was found that the dimethyl ether as a super-low pollution fuel can be used to replace diesel oil and liquefied petroleum gas, in addition, it also can be used to prepare light olefin.

90年代发现二甲醚是可以替代柴油的超低污染燃料以及作为液化石油气的代用品；此外，它还可用于制备低碳烯烃。

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Circulating Fluidised Bed (CFB) boiler is widely used in the world, because of the characteristics of fuel flexibility, high combustion efficiency and low pollution emissions.

循环流化床锅炉以其燃料适应性广、燃烧效率高、污染物排放低等独特的优点，而得到广泛的应用。

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The dual fuel engine, which uses natural gas as primary fuel and diesel oil as assistant fuel, will be used widely because of the low pollution of natural gas.

采用天然气作主要燃料柴油作辅助燃料的双燃料发动机，因天然气燃烧污染低将会得到广泛的应用。

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Further, as an illustration of Iran's febrile mood, many Iranians blame a recent lethal rise in air pollution on the allegedly low quality of indigenous fuel.

ECONOMIST: Iran's struggle