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  • 简介:NEWTECHNIQUEOFBIOCHEMANALYZINGNEWTECHNIQUEOFBIOCHEMANALYZINGYinWelcai(PLAGENERALBOSPITAL)NEWTECHNIQUEOFBIOCHEMANALYZING...

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  • 简介:ThereactionsofcryptotanshinoneandtanshinoneⅡAwithcadaverineandputrescinewereinvestigated.Sixnewcompounds,fourwithimidazolefunctionalgroupsandtwowithoxazolegroups,wereobtained.Thepossiblereactionmechanismwasproposed.

  • 标签: 合成 苯基咪唑衍生物 隐丹参醌 丹参醌 尸胺 腐胺
  • 简介:GansuRareEarthCorporationisoneofthelargestrareearthproducersinChina.Itsannualpro-ductioncapacityofrareearthchloridehasreached18000tonREObytheendof1992,rankingthefirstinChinaandbeingthesecondintheworld(onlynexttoMolycorp.,USA).Thecorporation’soriginalannualcapacityofrareearthchloridewas12000tonREO.Inmeeting

  • 标签: RANKING GANSU CORPORATION invested ROLLED
  • 简介:一晃新年又来到!看,呱呱他们又唱又跳,不亦乐乎!你是否也感受到了那份开心?高兴的同时别忘把这首小诗译成中文e-mail或邮寄给我们,幸运的你,或许就是下一期最佳小诗人!

  • 标签: 小学 英语教学 教学方法 阅读
  • 简介:InthisFebruary,CYTShassignedthecontractwithRADIUS,thefamousglobalcorporatetravelmanagementcompanybasedinU.S.Thisco-operationisoneofthestepsforCYTSgoingglobal.TheInternationalM.I.C.E.DepartmentofCYTS-themainbodyco-operatingwithRADIUSisseekingnewgrowthpointforprofitability-thatisengaginginnontraditionaltravelbusinesslikecorporatetravel,eventsmanagementconventions,exhibitions,incentiveandFITsetc.SohowCYTSstartsherbusinessafterjoiningRadius?WehaveinterviewedMr.GalenZhang,ManagingDirectorofInternationalM.I.C.E.DepartmentofChinaCYTSToursHoldingCo.Ltd.Belowarehisideasaboutdevelopingnewbusinessandstrengtheningcorecompetitiveness.

  • 标签: 中国 旅游业 中国青年旅行社 经营管理 核心竞争力
  • 简介:Thispaperstudiesthetemporalandspatialdistributionofgreatglobalearthquakes(MW≥8.0)since1900.Wecomparethetwoperiodsofupsurgesofgreatearthquakesoccurringinthemiddleoflastcenturyandbeginningofthiscentury.Theformerperiodtookplacebetween1950and1965duringwhich13greatearthquakes(MW≥8.0)occurred,includingthreeeventswithmomentmagnitudegreaterthan9.0.Thelargestmagnitudeinthisperiodreached9.6.Thelatterperiodstartsfromthebeginningofthiscentury.Inlessthan12years,15greatearthquakeshaveattackedtheworldwiththelargestmagnitudebeingMW9.1.Onthebasisofcomparisonbetweenthesetwoupsurgesofglobalearthquakeactivity,weinferthattheongoinghighlevelofearthquakeactivitymaycontinueforanotherfiveyearsorso.Numerousgreatearthquakes(MW≥8.0)andmanylargeearthquakes(MW6.0~7.0)willoccurgloballyinthesefiveyears.Inaddition,thispaperalsodiscussestherelationshipsbetweenearthquakeactivityalongtheSumatrasegmentoftheIndian-AustraliaplateboundaryandthatintheBayankalablockinthemiddleofQinghai-Tibetanplateauaswellasintheblocksofthesouthernplateau.TheresultsindicatethattheQinghai-Tibetanplateau,inparticularitsmiddleandsouthernparts,isalikelyplaceforfutureearthquakesofmagnitudeover7.0.

  • 标签: 全球地震活动 青藏高原中部 全球大地震 IGT 时空分布 全球范围
  • 简介:Theadvanceinbreadthanddepthofinternationalarmscontrolanddisarma-menthasitsgreatsignificanceineliminatingthethreatofanuclearwarandpro-pellingtheworldsituationonwardinthedirectionofrelaxationoftension.Atthesametime,anegativetrendalsoclaimsourattention.ThestrongmilitarypowersliketheUnitedStatesarecontendingamongthemselvesforretainingtheirmilitarysuperiorityandseizingmilitarysci-techcommandingheightswhileusingthe

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