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1、ThedevelopmentoftheChinamachineryChinaistheworld'sfirstnationalmachinerydevelopment.ChinesemechanicalengineeringtechnologynotonlyhasalonghistoryandsplendidachievementsinChineseisnotonlythematerialcultureandsocialeconomicdevelopmentplaysanimportantroleintheworld,andtopromotethepr
2、ogressofcivilization,technologyhasmadegreatcontributiontoChinesetraditionalmachine.Andinalongperiodaheadintheworld.Inmoderntimes,especiallyfromtheearly18thcentury,duetothenineteenforties,duetotheeconomicandsocialreasons,suchastheChinamachineryindustry,stagnation,inthe100yearsisw
3、esternbourgeoispoliticalrevolutionandindustrialrevolution,mechanicalscienceandtechnologyisdevelopingrapidly,andfarmorethanthelevelofChina.So,Chinamechanicaldevelopmentlevelandthewesterngapwidens,sharplytothe19thcenturymiddlebehindwesternonehundredyears.AfterthefoundingofnewChina
4、,especiallyinthepast30years,ourcountry'smechanicalscienceandtechnologydevelopmentspeed.Tothemechanicalproductlarge-scale,precision,automationanddiscussesthetrendofdevelopment.Insomeaspectshasreachedorexceededtheworldadvancedlevel.Generallyspeaking,currentlyChinamechanicalscience
5、andtechnologyachievementishuge,developingfast,highlevelofunprecedented.Inthisperiod,Chinahasnoendofmechanicalscienceandtechnologywilldeveloptoahigherlevel.Aslongaswecanadoptthecorrectpolicy,withgoodtechnologydevelopmentandinnovation,ourmachineryindustryandmechanicaltechnologycan
6、revitalize,leadingtothedevelopmenttrendofmechanicalindustry.In1964,changshaconstructionmachineryinstituteHB120developedmovabletype,In1977,changshaconstructionmachineryfactorybuildingsanddevelopedinliuzhouHZR250typeandtheHZR70typevibratingplateram,In1983,changshaconstructionmachi
7、neryinstituteandthejointdevelopmentofhubeivibrationinthefirstHZR70typevibrationshockramming,Themechanicalprocessing:Accordingtothearchaeologicaldiscovery,hot-workingcastinginBeijingpinggu,changpingandsohaveprovedthatthe16thcenturyBCshangdynasty(bronzeobjects.Mingyongle(1403-1424
8、years),Beijingproduceworld-renownedMingyonglegr
