Efforts have been made to use the graft copolymer EPR-g-PS with eth-ylene and propylene copolymer(EPR) as the backbone and polystyrene(PS)as grafts, prepared by macromer copolymerization, as a compatibilizer forPS/EPDM blends.是什么意思_Efforts have been made to use the graft copolymer EPR-g-PS with eth-ylene and propylene copolymer(EPR) as the backbone and polystyrene(PS)as grafts, prepared by macromer copolymerization, as a compatibilizer forPS/EPDM blends.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句