有關polyesters的精選大全

用polyesters造句子,“polyesters”造句
Onbiodegradationofunsaturatedaliphaticpolyestersdrill,obtainedfromhightenacityyarnofnylonorearthpolyamidesorofpolyestersTheywerethefirstbiodegradablepolyesterstobeutilisedinplastics.Aliphaticpolyester...
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