释义 |
co·di·mer \(ˈ)kō|dīmə(r)\ noun (-s) Etymology: co- + dimer : a copolymer formed from two dissimilar molecules (as two olefins); specifically in petroleum refining : the mixture of hydrocarbons formed by the copolymerization of the butylenes which on hydrogenation yields a mixture of octanes used as a blending agent in aviation gasoline |