關於TheChineseinventedpa的百科

•    TheChineseinventedpaperin105A.D.Theymixedthebarkofat...

• 問題詳情：   TheChineseinventedpaperin105A.D.Theymixedthebarkofatreeandrags(破布)withwater,putascreenintothemixture,andliftedoutathinpieceofwetpaper.Theydriedthepaperinthesun.    TheChinesekepttheirsecretofhowtomakepaperuntilawarwithMuslimsinthe...
• 2021-12-2233032