在1973年石油危机之后，我们再次团结起来，能源的使用效率获得巨大的改善。
After the 1973 oil crisis, we came together and made dramatic improvements in energy efficiency.
选择正确的燃气壁挂炉非常重要，它可以在节省采暖费用的同时增加能源的使用效率。
Choosing the right boiler is very important since it can help in reducing your home heating costs and improving your home's energy efficiency.
结果显示，各地区、部门要获得更多的能源，就必须提高能源的使用效率，提高能源消费的边际效益，降低污染排放水平。
The result shows: if any area or department wants to get more energy, they must to improve the utilize efficiency and the marginal benefit of energy; reduce the pollution.
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