biodiesel, definition of

Biodiesel

A heat pump is an electrically powered mechanical device that takes heat from one location and transfers it to another location. An air conditioner is an example of a heat pump in that it takes heat out of the interior space and then rejects that heat to the outdoors. However, a true heat pump can work in either direction, unlike an air conditioner; in that it can take heat out of an interior space, or it can put heat into an interior space.

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What is biodiesel?
biodiesel definition.
About biodiesel.

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