美国科学家展示了一种大有可为的太阳能蓄电池设计，具有前所未有能量使用效率。
Unprecedented energy efficiencies using a very promising solar cell design have been demonstrated by scientists in the us.
在住宅四周建造湿地，使用绿化屋顶进一步提高能量效率和组织排水。
Constructed wetlands around the house and the inclusion of a green roof further help to increase energy efficiency and manage water runoff.
用容器很不错，可以大大提升能量的使用效率，同时又减少了包装材料以及电缆的需求。
The containers are considered a good choice being more power efficient, and require less packaging materials for servers and a lot less cables.
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