PTMG造句
1、StudyonMechanicalPropertiesofMDI/PTMGTypePolyurethaneElastomer2、Polyoxytertramethylene(PTMG)issynthetizedinonestepusingheteropolyacidascatalyst.WediscussedthefactorswhichinfluencedtheyieldofPTMG.3...
1、StudyonMechanicalPropertiesofMDI/PTMGTypePolyurethaneElastomer2、Polyoxytertramethylene(PTMG)issynthetizedinonestepusingheteropolyacidascatalyst.WediscussedthefactorswhichinfluencedtheyieldofPTMG.3...