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1、TheFourGreatInventionsofAncientChinaChineseancientachievementsinscienceandtechnology1.ScienceandtechnologyChineseancientastronomycalendar1.ScienceandtechnologyAncientChinesemathematicsachievement:1.Ninechaptersofarithmetic《九章算術(shù)》2.《周髀算經(jīng)》1.ScienceandtechnologyTheancientChineseachiev
2、ementsinphysicsmedicinegeographyarchitectureandsoon.ThefourgreatinventionswereimportantsymbolsofChina’sroleasagreatworldcivilization.2.InfluencetotheworldMarxpointedout:Gunpowderblewuptheknight(騎士)classCompass（羅盤）openedtheworldmarketandsetupcolonies（殖民地）Printingisbecomingprotestan
3、ttools2.InfluencetotheworldThefourgreatinventionsintheEuropeancivilizationgraduallyspreadtothewestbefore,becomethenecessarypremiseof“Bourgeois(資產(chǎn)階級)development"Papermakingtechnology4.DevelopmentInvented2century105Popularize3to4centuryOnlywritingmaterialMaininventor：2.CaiLun?—121Of
4、ficialKilledbyhimselfThegodofpaperWhatdoesitmakeof?1.AncientrawmaterialBark(樹皮)Fishingnetclothhempheads(麻頭)3.produceTherearefourmainstepsIwillintroducetoyou3.produceFirstSeparationofrawmaterialTousetherettingleaching（漚浸）orcookingmethodsforrawmaterialsinalkali（堿）degumming（脫膠）,andsc
5、atteredintofibrous（纖維狀）;3.produceSecondBeating（打漿）Usethemethodofcuttingandstruck（捶搗）staplefiber,andmakethefiberbroom(帚化),andbecomethepulp(紙漿);3.produceThirdManufacturepaperwithpulp（抄造）Namelymakepulpwaterpenetrationintoslurry,thenusedforpaperpulp(wovenbamboomat)andgetthepulpinpaper
6、towoventhinsheetofwetpaper;3.producefourthDryNamelythewetpapertodry,peelingthenbecameapaper.4.Spread6thcentury:Korea7thcentury:Japan8thcentury:ArabStatesandIndia12thcentury:EuropeandAfrica16thcentury:Amrica19thcentury:Oceania5.InfluenceItisarevolutionofwritingmaterial.Anditiseasyt
7、ocarry,therangeisnotconstrained(強(qiáng)迫),drivingtheChinese,Arab（阿拉伯人）,Europeanandtheworld'sculturaldevelopment.Paper-makingisoneofthefourgreatinventionsofChina,thepaperistheHanlongexperienceaccumulationandthecrystallizationofthewisdomofworkingpeople,humanabrilliantinventioninthehistory
8、ofcivilization.
