玻璃门窗节能
Energy saving of glass win- dows and doors
建筑外窗节能
Building energy Efficiency of windows
塑料窗节能
save energy of plastic windows
新型节能窗
new type of energy saving window
节节能减排
Energy-saving Emission Reduction
节能节材
Energy-saving and Materials-saving
节能节地
Energy-saving and land-saving
节能节电
economizing on energy and electricity
节能节水
saving water and energy
Energy-saving and water-saving
Energy and Water Saving
太阳能节能灯
Solar energy saving lamps
新型多功能节能炉
The design of a new type multi-functions stove
智能节能系统
intelligent and energy saving system
智能节能照明控制器
intellective lighting control for power conservation