Developed countries, energy consumption structure, a large proportion of the oil.
发达国家的能源消费结构中，石油所占比例很大。
There is scarce study on the evolvement of rural household energy consumption structure in Northern China at present.
目前对中国北方地区农村家庭能源消费结构演变的研究较少。
As the energy consumption structure changes, natural gas, a clean energy source, will be adopted mainly through boilers.
随着能源消费结构的改变，天然气这种清洁能源将主要通过锅炉被广泛应用。
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