Already there are many alternative fuel vehicles on the market, powered by anything from solar power to natural gas.

市场上已经有很多替代燃料汽车，其动力来源从太阳能到天然气无所不包。

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Scientists have found substitutes for oil as fuel. Coal, natural gas, solar power, nuclear power and even water can replace oil as sources of energy.

科学家已经找到了石油的替代品，包括煤、天然气、太阳能、核能甚至是水。

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The fuel cell, which runs on natural gas, is made by UTC Power, a subsidiary of United Technologies Corporation.

依靠天然气运行的燃料电池是由联合技术公司的一家子公司UTC电力公司制造的。

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China is particularly keen to secure supplies of oil and natural gas to fuel its rapidly expanding industries.

VOA: standard.2009.10.13

Other creative opportunities being explored include natural gas pumps (hooked up to the home) to fuel natural gas vehicles, and light duty vehicles relying on fuel cells (which manufacturers hope to begin building by 2015).

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What does a dirty-fuel player like Consol want with a clean-burning fuel like natural gas?

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Methane(CH4) is both a fossil fuel(natural gas) AND a biofuel(biogas).

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