asaresultoftime-savingsection.quicklycatchingon,headded.blockprintinginthesongdynastyreacheditspeak,baosongtaizuopenedfouryears(971years)inchengduplateprinted"tripitaka",atotalof5048printedvolumes,printingof130,000,spent12yearsbeforethecompletionof雕印.hosoalarge-scaleprinting,woodblockprintinghasbeensufficienttoshowthataveryhighlevel.in1041-1048years,thecarvedworkbishengalsocreatedaprintoperation.claythatismadewiththesamespecificationsblank,bearingtheanti-bodyatoneendofwords,hardtousefiretobecomeasingletypeofclay.withthesetypelayout,bothtosavecosts,butalsogreatlyshortenedthetime,veryeconomical.moveabletypeprintinghistoryoftheemergenceofamajorrevolution.zhen-yuanwangclaytypewillbechangedtowoodtypetocreateawheelframetypesetting.sincethentherehavebeentin,copper,leadmetaltypematerial.printoperationafterthe13thcenturycamefromkorea,japan,tothemid-15thcentury,themoveabletypeineuropetomasterthetechnique.moveabletypeoperationisourpeopleandmankindmadeasignificantcontribution. gunpowdergunpowderwasinventedbytheprocessofalchemy,8~9thcenturyad,alchemyarealreadyawareofsulfur,saltpeterandcharcoalcombustionoccurswhenintenseresponse.inthisway,inventedinthetangdynastytothethreesubstancesasrawmaterialsforblackpowder.tothesongandyuanperiod,avarietyofmedicineshaveamorereasonablequantitativeratio,andfirstusedinthemilitaryhaveemergedasearlyastheartillery,guns,rockets,mines,bombsandotherweaponsandgunpowder.museumcollectionofchinesebronzemirroroffireandcreateinthefirstyearofathree-year-shun(1332).itistheworld'searliestcopperfoundguns,gunpowder,asthedrivingforceasaresultofrelyingonitspowerful,callsit"copper,general."gunpowderinthe13thcenturywhentheholdersreachedthearabstates,arabandpersianglassmanufacturinggunpowdercalled"chinesesnow."afterthe14thcentury,china'smanufacturinggunpowderweaponstechnologyspreadtoeuropebythearab. compasscompassfirstappearedinthewarringstatesperiod,itwasgroundintoalodestonespoontosmoothitonthesiteinparticular,fortheguide,calledian.tothelatesongdynasty,ithasbeenfoundonthesteelmillafterthemagnetwouldhaveamagnetic.sothereisacompassasarawmaterial.duetotheneedforthedevelopmentofnavigation,peoplestartedusingwaterasarawmaterialfloatingcompassorientationintherainydays.totheyuandynasty,thenavigationhasbeencompletelyrelyonthecompasscoursecompassguidelines.withforeigntradeandseatransportdevelopment,thecompassandapplicationoftechnologyhasspreadtothearabregionandsoonspreadtoeurope. paper,moveabletypeoperation,gunpowder,thecompass,thefourgreatinventionsofthisnotonlyforchina'seconomic,military,culturalandotheraspectsoftheroleofrelativelygreat,especiallyforbeingfromafeudalsocietytocapitalistsociety,thetransitionofsomewesterncountrieshavehadatremendoustheimpactofthedevelopmentoftheeuropeanbourgeoisieprerequisite.asmarxpointedout:"gunpowder,thecompass,printing"thisisaharbingerofthearrivalofthethreebourgeoissocietyinvention.knightclasspowdertoblowtopieces,thecompassopenedtheworldmarketandtheestablishmentofacolony,andprintingwillbeturnedintoatooloftheprotestant,onthewholescienceintoameansofrejuvenation,ofthespiritintothecreationofanecessarypreconditionforthedevelopmentofthemostpowerfulleverage."theancestorofthemodernexperimentalscientistfrancisbaconinthe"newtool"inhisbook,hasalsosaid:"ifyouwanttolookatthestrengthofavarietyofinventions,theroleofthemostprominentexampleisthenewlyinventedprinting,gunpowder,thecompass.becausethesethreethingshavetochangethefaceofthewhole.thefirstintheliterature,thesecondinthewar,thethirdinnavigation.andthenfromtherehavealotofchanges,changeissolarge,andnotanempire,notasingleschool,notasingleprominentfigurethanthesethreeinventionsinthehumancauseofgreaterforceandimpactofyesterday."thisshowsthatthefourgreatinventionsofthepromotionofthehistoricalprocessoftheworldmadeagreatcontribution. technologicalachievementsinancientchinaisverybrilliant,manyofwhichfarexceedsthetechnicallevelofthedepartmentoftherestoftheworld.however,thesetechniquesareverypractical,areatthetimeofserviceofthefeudalrulingclass.therefore,theworkingpeopleintheproductionofthepracticeoftheinventionofnewtechnology,oncetherulerssee,canbegivendueattentionassoonaspossibleandtoenhanceandpromotetheuseofsound.instead,thestakeholdersoftherulersdonothavethetechnologywasinventedtopreventandstifle.onthispoint,theancientchinesetechnologyhasbeenaleadingpositionintheworldandchinalaggingfarbehindinmoderntechnologyintheworld,withtheinterestsofthefeudalrulersarecloselyrelated.
c.necessaryfordecision-making[editthisparagraph]cloning cloningistheenglish"clone"ofthewordwho,intaiwan,hongkongandmacaoforthecopyingorparaphrasingthegeneraltransferistheuseofbiotechnologyproducedbyasexualreproductionareidenticaltotheoriginalindividualgenomeafterthegenerationprocess.scientiststoartificialgeneticmanipulationofanimalstheprocessofreproductioniscalledcloning,thisiscalledcloningbiotechnologyinitselfisthemeaningofasexualreproduction,thatis,bythesameancestorcelldivisio << 上一页 [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] ... 下一页 >>
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