英文同义词
1-Propene, 2-methyl-, polymer with 1,3-pentadiene;1,3-Pentadiene, polymer with 2-methyl-1-propene;1,3-Pentadiene, polymer with 2-methylpropene;Isobutene-1,3-pentadiene copolymer;Isobutene-piperylene polymer;Isobutylene-1,3-pentadiene copolymer;Isobutylene-piperylene copolymer;Isobutylene-piperylene polymer;Propene, 2-methyl-, polymer with 1,3-pentadiene