简介:摘要:介绍了某9E联合循环机组N60-5.6/0.56/527/255型双压凝汽式汽轮机在真空系统上的节能技术改造,在原有真空泵组的基础上并接一套小型的罗茨--水环真空泵组。机组正常运行中利用罗茨--水环真空泵组替代原有真空泵组维持凝汽器真空,以降低厂用电率,提高机组发电效率。
简介:Chinaisanimportantcountryforbothcross-borderonlineimportsandexports.ClosetoathirdofactiveonlineshoppersinChinahavemadepurchasesacrossborders.China’scross-bordere-commercegrewmorethan30%in2015.Atpresent,accordingtotheMinistryofCommerce(MOC),morethan200,000companiesarerunningcross-bordere-commercebusinessesinChinavia5,000-pluse-commerceplatforms.Cross-bordere-commercehasalsobeen
简介:WiththeextensiveuseoftheInternetandmobiletechnology,E-commerceinChinahasshowntremendousgrowthadvantagesandmarketpotential,especiallyinpromotingtheaccessofeco-agricultureproducts.TheE-commerceofagricultureproductshasshowndiversificationonthemainstay.'Threeproducts,oneindication'(pollution-free,greenproduct,organicproduct,geographicalindication)hasbecomestheprimarycharacter.Althoughthemarketoffreshproductsoccupiesalimitedandmeagerprofit,theblueseaeffecthascausedcapitaltoenterintoalarge-scaledevelopment.Itisveryclearlyshownaftertheanalysisthatthemarketofeco-agriculturalE-commerceisvastandtheexpansionistpolicyforE-commerceenvironmentisfavorable.MeanwhiletherequiredhardwareandsoftwareofnetworkinE-commercearebasicallyequippedwithrapiddevelopmentofservicetechnologyandstrongdrivingforceforinnovationanddevelopmentaswellasanendlessstreamofnewmodelsandplatforms.Thewholephraseofdevelopmentcanbedividedintofivemajorstages.Throughtheanalysisoffiveperspectives,suchasplatform,driver,participant,foodsupplierandTaobao,16typesofagro-productsE-commercemodelsandtheirdifferenttypesofe-paymentsupportsystemsaresummarized,revealingthetwomajorbottlenecksofdevelopment,namelythemarketswithlimitedshareandlowprofit-makingandtheimpactofcoldchainservicesonE-commercedevelopment.Thethesisfinallyfortellsthetentrendsforthefuturedevelopment.
简介:在分析国内外e—Learning信息化教育模式现状的基础上,对其研究发展方向和构建模式进行了初探,构建了“传统+现代+演绎+实践”的e—Learning信息化教育建设和研究模式。
简介:[摘要]E-mail最为互联网时代最有效,最直接,成本最低的信息传递工具,对于企业开展网络营销具有重要意义。E-mail营销是在用户事先许可的前提下,通过电子邮件的方式向目标用户传递有价值信息的一种网络营销手段;E-mail营销常用的是内部列表和外部列表两种基本的形式;在E-mail营销活动中,通过对一些指标的监控和分析,可以用来评价营销活动的效果,解决营销过程中的问题,并对营销活动进行一定得控制。