Notwithstanding important recent progress in developing renewable fuel sources, low fossil fuel prices could discourage further innovation in, and adoption of, cleaner energy technologies.

尽管最近在开发可再生燃料方面取得了重要进展，但化石燃料价格较低这一因素可能会阻碍清洁能源技术的进一步创新和应用。

youdao

Renewable fuel vehicles are available in certain areas.

可再生燃料的车辆，可在某些领域。

youdao

A number of bases inside the US have begun to tap into renewable fuel sources including wind and solar energy.

美国国内的一些军事基地已经开始利用包括风能和太阳能在内的一些可再生能源。

youdao

Nor is generating fuel from renewable sources.

VOA: standard.2010.02.23

The Marines, in particular, are off to a good start with renewable fuel in Afghanistan.

FORBES: Green Tech Lessons From The USS Cole Attack

This puzzles me intensely, this renewable fuel being produced by a firm called Carbon Recycling International.

FORBES: This Is An Odd Renewable Fuel

That means more emissions (EPA modeled that in their Renewable Fuel Standard), but also more costs.

FORBES: Further Implications Of The U.S. Ethanol Tariff