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中国中长期宏观节能潜力分析:国际比较与国际经验 总被引:1,自引:0,他引:1
未来我国能源需求规模存在较多不确定性,把握节能潜力是设定节能目标并采取相应政策措施的前提条件。力求从更大范围的国际比较和更长历史时期的国际经验来讨论我国的节能潜力。依据人均GDP、经济结构、人均钢材和水泥保有量、人均用电量、人均居民生活用电量等指标,结合资源禀赋结构、气候条件、设备用能效率差异、后发优势等因素综合考量,从能源经济发展阶段来看,目前我国大致处在美国1960年左右的水平,处在英、法、德、意、日五大工业国1970-1980年间的水平。参考发达国家近50年来的能源发展经验和我国近30年来的发展历程,2010-2030年我国年均经济增速潜力超过8.5%,能源弹性系数潜力为0.6;单位GDP能耗年均下降潜力超过3.4%,累计下降潜力大约为50%。 相似文献
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The existing oil import dependence index cannot exactly measure the economic cost or scales, and it is difficult to describe the economical aspect of oil security. To measure the foreign dependence of one country's economy and reflect its oil economic security, this paper defines the net oil import intensity as the ratio of net oil import cost to GDP. By using Divisia Index Decomposition, the change of net oil import intensity in five industrialized countries and five newly industrialized countries during 1971—2010 is decomposed into five factors: oil price, oil intensity, oil self-sufficiency, domestic price level and exchange rate. The result shows that the dominating factors are oil price and oil intensity; moreover, the newly industrialized countries have higher net oil import intensity than industrialized countries. 相似文献
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As China’s energy intensity fluctuated in recent years, it is necessary to examine whether this fluctuation happened at a regional level. This paper establishes a decomposition model by using the structural decomposition analysis (SDA) method at a regional level. Then this model is employed to empirically analyze the changes of Beijing’s energy intensity. The conclusions are as follows: during 2002-2010, except petroleum, the energy intensity decreased and the changes were mostly attributed to the technology changes, while the final use variation actually increased the energy intensity; comparing different periods of 2002-2010, the decline rates of energy intensity for coal and hydropower were decreasing, resulting from the production technology being more energy-intensive than before; the energy intensity changes of petroleum firstly increased substantially and then decreased moderately. 相似文献
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廖华 《四川教育学院学报》2001,17(Z2):66
带电体之所以会吸引轻小物体是因为轻小物体在带电体的电场中被极化,电场对极化电荷的合力是引力;相同电性的带电体在电场中既有极化电荷又有转移电荷,当极化电荷所受的引力大于“转移电荷”所受的斥力时,相同电性的带电体也会相互吸引. 相似文献
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以某重型机床厂扩建工程为例,参照噪声环境影响评价的有关规定及技术规范,分析了振动环境影响评价应采取的标准、等级、内容及方法等,论述了等振级曲线概念,预测了扩建工程振动对周围环境的影响范围和程度,提出了振动环境影响的防治对策及效果。 相似文献
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儒家思想构成了中国传统文化的基本精神和主体框架,它的人本主义精神以及注重道德的伦理价值观对于当今时代有着重要的现实意义,对于教育理念以及教学方式的变革有着积极的启示意义,但是也有与现代化发展不相适应的局限性,我们应该客观认识并予以合理性的重建。 相似文献
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廖华 《广东教育学院学报》2008,28(2):33-36
《新小说》开创了一个以机器复制、报刊连载为主要特征的文艺杂志的时代,为中国小说的发表和传播找到了一条适合时代发展要求的新途径,并直接促成了20世纪初期报章小说繁盛一时的崭新局面。 相似文献
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教学内容:北师大版教材四年级下册第66页"精打细算"(除数是整数的小数除法).
一课前谈话
师:同学们将来想从事的职业真不少,老师极力向你们推荐一个职业:当一名教师!收入挺高的.
生:年薪多少啊?
师:(一字一句地表述)100万多一点.
生:一个月10万.(生摇头表示不相信)
生:怎么可能有这么多?
(生交头接耳,议论开了)
生:我知道了,是10万. 相似文献