目前运输业占了该市矿物燃料使用量的60%，所以城市规划者们希望司机使用以当地沼气为动力的汽车，市政用车已经这样做了。

Transportation now accounts for 60 percent of fossil fuel use, so city planners want drivers to use cars that run on local biogas, which municipal vehicles already do.

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运输业对化石燃料的需求大大增加了。

There is big increase in demand for fossil fuel in the transportation industry.

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但是，现在的空气污染正受到现代交通运输业的污染，尤其是天然气汽车，以及燃烧矿物燃料的发电机，把污染的化学废物倾倒在空气中。

Butt air is now being polluted by modern transportation, notably gas-powered automobiles, as well as electrical generators that burn fossil fuels and pour polluting chemical waste into the air.

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