Such systems consume almost no conventional fuel at all.

这种系统几乎不消耗任何传统燃料。

youdao

It burns 80 percent cleaner than conventional fuel.

生物柴油燃烧时的清洁度比传统燃料高出80%。

youdao

The system works so well that no conventional fuel is needed to make the campus's six buildings comfortable.

该系统运转十分良好，不需额外的燃料便能让该校区的六幢大楼温暖如春。

youdao

With conventional fuel prices high and rising, Pag couldn't have picked a better time to take on the challenge.

CNN: Chip pan rally

Scientists at the Los Alamos National Laboratory hope that conventional fuel burning engines become an instrument of the past.

CNN: Lab develops engine for the future

In other words, conventional fuel (gasoline and diesel) light-duty vehicles will be with us for many years to come, exhaling pollutants and making the world a dirtier place.

FORBES: America's Dirtiest Vehicles 2013