有關PTMG的精選大全

用PTMG造句子,“PTMG”造句
1、StudyonMechanicalPropertiesofMDI/PTMGTypePolyurethaneElastomer2、Polyoxytertramethylene(PTMG)issynthetizedinonestepusingheteropolyacidascatalyst.WediscussedthefactorswhichinfluencedtheyieldofPTMG.3...
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