We measured the electricity used during air cooling in the same way as heating, and compared the old model air conditioner to the energy conservation (2001) model.
The third is the preservation of environment. In this case, the conservation of energy and resources is needed.
It is only recently that people have begun to realize the importance of nature conservation.
This has been designated a conservation area.
I was asked to make a few remarks on energy conservation.
Forest conservation is an important issue all over the world.
The organization plays a principal role in wildlife conservation.