文语站关于polyesters的文学精选
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![polyesters造句]( "polyesters造句")
polyesters造句
Onbiodegradationofunsaturatedaliphaticpolyestersdrill,obtainedfromhightenacityyarnofnylonorearthpolyamidesorofpolyestersTheywerethefirstbiodegradablepolyesterstobeutilisedinplastics.Aliphaticpolyester...
