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一、国外小城镇建设与发展的模式 国外小城镇建设与发展模式是与各国国情和生产力发展水平相联系的,它们有着自身的特色,但又有着众多共同的方面。按照各国小城镇建设与发展特点的差别,可将其分为两种模式: 相似文献
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Kinetics of Liquid-Phase Hydrogenation of Toluene Catalyzed by Hydrogen Storage Alloy MlNi_5 总被引:2,自引:0,他引:2
Asacleanandhigh efficiencyenergyresource ,hydrogenisthoughttobethemostpromisingsubstituteoffossilfuels .Storingandutilizingtheenergybyus ingthehydrogenasenergycarrieristhemostfavor ablemethodtosolvetheenergycrisis ,whichattractsthefocusoftheworld .Therehavebeenconsiderableprogressesinthetechnologyofhydrogen energyinre centyears .Reillyetal .[1] firstproposedtheconceptofthemetalhydrideslurryin 1 980s ,inwhichthede formationorruptureofthevesselsduetotheparticlepulverizationandthepoorheattransfer… 相似文献
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