renewable energy source

The one renewable-energy source it still seems to be serious about is biofuels.

Coal is not a renewable energy source and its total reserves will decrease year by year.

Bioethanol is taken into account as many states' strategy as a sustainable, portable and renewable energy source.

At present, wind power is the most mature renewable energy source in technology and can be explored in large-scale development.

The turbo boost gauge is calibrated by tree icons, a playful reminder of the car's renewable energy source.

Wood fuel is a renewable energy source and its importance will increase in the future.

Biofuels have been around for a long time and they are the least expensive renewable energy source.

Biodiesel is a renewable energy source produced from renewable bioresources, such as various animal fats and vegetable oils.

Land and other resources should not constrain the development of biomass as a renewable energy source for the future.

Recent years, wind power as a kind of clean and renewable energy source is drawing more and more attention.

Biomass is a renewable energy source existing in the nature.

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