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香港地区环境噪声防治综述王贤,吕玉恒AReviewontheControlofEnviron-mentalNoiseinHongKongAreaBasedonthedatafromtheirfieldvisit.academiccommunicati... 相似文献
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富集柱型水质监测自动取样器高连存,黄佶,包南,王淑仁ThePortableCompressionGas-CollectionColumnAuto─samplerforTraceOrganicPullutantsfromEnvironmentalWat... 相似文献
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转变传统发展战略积极推行清洁生产(续)杨作精,肖瑜ShiftfromtheTraditionalStrategyforDevelopmentbyActivelyPromotingCleanerProduction(cont.)Inthelastedi... 相似文献
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大力开展资源综合利用促进国民经济快速、持续、健康发展EnergeticallyDevelopingtheComprehensiveUtilizationofresources,FacilitatingNationalEconomyDeveloptin... 相似文献
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垃圾焚烧发电厂设计与建设中应注意的问题潘绍文,李自强AspectsNeededtobeTakenintoAccountintheDesignandConstructionofaSolidWasteIncineratedPowerStationBase... 相似文献
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高效节能净化设备FCJ有机废气净化装置High-efficiencyEnergy-savingPurificationPlantFCJOrganicWasteGasPurificalPlant栾志强FCJ有机废气净化装置是解决环保治理中低浓度、大风量... 相似文献
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本文论述了党校开展城市生态环境教育的重要意义,城市生态环境的特点,与城市发展的关系,提出了加强城市生态环境管理的对策。 相似文献
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菝葜根茎中黄酮类化合物的提取与含量测定 总被引:1,自引:0,他引:1
对菝葜植物根茎中黄酮类成分进行了定量测定和定性分析.结果表明,在菝葜植物根茎中含有黄酮、黄酮醇、二氢黄酮、二氢黄酮醇等多种黄酮类化合物.以芦丁为标准品,用分光光度法测得菝葜根茎中总黄酮含量为3.36%. 相似文献
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C_8-SBA-15新型介孔涂层SPME-HPLC联用测定水样中的芘 总被引:1,自引:0,他引:1
以辛基键合SBA-15为固相微萃取(SPME)的吸附涂层,考察了吸附和解吸时间、萃取温度、搅拌速率对SPME效率的影响。该方法的线性范围为3.0—320μg/L,检出限为0.5μg/L,依据此方法测定了环境水样中芘,具有灵敏度高和精密度好的特点。 相似文献
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The purpose of this paper is to estimate and analyse the price effects of the iron ore mergers between Rio Tinto and North Ltd in 2000, and CVRD and Caemi in 2001. The analyses are conducted using a merger simulation model that, based on the pre-merger situation, estimates the post-merger outcome. This paper applies the so-called proportionality-calibrated almost ideal demand system (PCAIDS) model, which assumes that the product is differentiated and that the strategic variable is price. The results from the merger simulations show that in the case of the merger between Rio Tinto and North Ltd, the merged firm has a combined market share of almost 20%. However, the estimated market weighted average price effect is only 2.6%. Regarding the merger between CVRD and Caemi, the merged firm's market share is about 29%, and the estimated market weighted average price effect is 4.6%. When removing Caemi's Canadian asset, which was the Commission decision in order to allow the merger, the market price effect decreases to 3.1%. Overall the results in this study support the Commission's decisions regarding both merger cases, and shows that merger simulations of price effects can be valuable tools in merger assessments. 相似文献