The central air conditioning system of the four parts can implement electricity-saving rebuilding.
合肥大金中央空调系统的四个部分都可以实施节电改造。
2
After two years of hard work, the group paid for the solar panels, which now satisfy one-fourth of the school's electricity needs—saving the neighborhood thousands of dollars.
经过两年的努力，该组织购买了太阳能电池板，现在满足了学校四分之一的电力需求，为社区节省了数千美元。
3
In sunny day, the solar panels convert sunlight to electricity, drive cars, and the extra electricitysavingelectricity box, so that even in cloudy or rainy days go out don't but heart.