简介:Wang:Ibelievethattheabovecomparisonsofthetwo"warsonIraq"areexcellent.TheUnitedStateshasmadeitclearthatitspresentmilitaryactionsareaimingat"topplingSaddam."ItseemsthatWashingtonhaslongmadepreparationsfortheactions,andwilldomoreinthefuture.
简介:ThewarinIraqiscomingtoanend,andthemilitaryactionsaregivingplacetothereconstructionsofthatcountry’spolitical,economicandsocialsystems.Thiswarmarksamajoreventininternationalrela
简介:U.S.sanctionsonIranhaveexpandedsincethestartoftheIraniannuclearissue.Theyhavegrownfromsmall-scaleembargoestotoday’ssanctionsonmultiplesectorsincludingfinance,trade,energy,andpersonnel.DuringU.S.PresidentBarackObama’stenure,thereisverylittlelikelihoodthattheU.S.willresorttoforce,leavingWashingtonwithnoothermeansthansanctionstopersuadeIrantochangeitsnuclearpolicy.Thismeansthatalthoughsanctionshavealimitedeffect,theU.S.willcontinuetoprimarilyrelyonthemtoforceIran’shand.
简介:摘要分析了传统的弯曲模具成型产生擦伤原因,设计了一种新的滚轴式弯曲模具,介绍了模具的工作过程和设计要点。该模具主要以转动为主,与零件表面几乎无相对滑动,因此能达到很好的外观要求。
简介:DifficultiestheU.S.high-techindustryisnowfacingmaybeonlytemporarybutuncertaintyoverlawsandpoliciescouldcreateasetback.Theemergingtransformationbasedonadvancedrobotics,3-Dmanufacturing,newmaterials,bigdataanddigitalization,whichsomeconsidera"third"industrialrevolution,willcometofullflowerlaterthanexpectediftheAmericangovernmentfailstofine-tunerelevantlawsand
简介:TheRepublicanseizureofCongressmajority(53seatsinthe100-seatSenateand230outof435Houseseats)putanendtoa40-yearHousedominationbytheDemocratsandconsequentlytheirsimultaneouscontrolofboththepresidencyandthelegislature.ThiswillmeantightercongressionalrestraintsoverBillClintoninthetworemainingyearsofhispresidency.Whatismore,theRepublicansalsowon31of50governorshipsandtheirgainsinclude8ofthe10crucialbiggeststatessuchasCalifornia,NewYorkandTexas,asituationboundtomakegreatimpactonthe1996presidentialrace.
简介:摘要: 知识是不能直接传授的,而是要通过学生的学与思考方能获得。“ U 型学习”呈现知识学习的还原与下沉、尝试与探究、反思与上浮三个过程,有利于学生进入沉浸式学习,有利于教师实施深度教学。
简介:摘要:锻压厂热处理的U型丝杆在生产过程中发现开裂现象。现对U型丝杆开裂原因进行理化综合分析,主要目的是查清U型丝杆开裂的原因,找出问题症结,及解决方法,以便在今后的生产中提高产品质量,防止类似事情再次发生。