研究结果表明：我国的能源需求是带有结构突变的趋势稳定过程而非结构突变的单位根过程；
The result indicated that the energy demand of our country is the process of trend stability with a structure change rather than the process of unit root with a structure change;
世界各国的能源消耗总体上呈增长趋势，据统计能源需求以每年2%的速率增长。
The energy consumption of the whole world present the trend of growth, according to statistics the energy consumption is growing as the rate of two percent.
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