The developing trends and preparation technology of producing hydrogen from methane are introduced 氢气作为二次能源将成为未来主要能源之一。
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The developing trends and preparation technology of producing hydrogen from methane are introduced 摘要氢气作为二次能源将成为未来主要能源之一。
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As one of important devices that transformed the crude resource into quadric resource , the boiler ' s working status affects the using rate of resource directly 锅炉作为将一次能源转化为二次能源的重要设备之一，其工作情况的好坏直接影响到能源利用率的高低。
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Abstract : the exhausting of resources and the deteriorating of env ironment are common in old industry bases . science and techology have been widely applied to traditional industrial structure in anshan . on the other hand , the ste ps of adjusting industral structure have speeded up , that is , green industry has b een emphasized in three industry structure to achieve sustainable development i n an old industry base 文摘:老工业基地普遍存在着资源枯竭，环境污染严重的问题.为此，鞍山市在传统产业中加大科技投入，实行二次能源的综合利用，加快产业结构的调整步伐，即在三次产业结构中突出发展绿色产业，以实现老工业基地的可持续发展，从而取得初步成效
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Power plants converse elementary energy into electric power most of which are coal - burned power plants with a efficiency from 25 percent to 40 percent because of technology limit . as competition mechanism has been introduced into electric market and the identity of electric production , cost competition become the essential competition in electric market at present 发电厂是将一次能源转换成二次能源的企业，在我国，绝大多数电能是由火电厂生产的，总体能耗成本十分高，受热机技术的限制，燃料的化学能转换成电能的效率不高，仅在25 ? 40之间。
