Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.

三元胶（EPDM）是烯、烯和少量非共轭二烯烃的共聚物。

The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.

二烯烃和烯基芳烃是非不稳定的组分，可聚合生凝胶。对于给定烯烃和烷基芳烃，氢化可以改质量。

Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.

三元乙（EPDM）是乙烯、烯和少量非共轭二烯烃的共聚物。

The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.

二烯烃和烯基芳烃是非不稳定的组分，可聚合生凝。对于给定烯烃和烷基芳烃，氢化可以品质量。

Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.

三元胶（EPDM）是烯、烯和少量非共轭二烯烃的共聚物。

The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.

二烯烃和烯基芳烃是非不稳定的组分，可聚合生凝胶。对于给定烯烃和烷基芳烃，氢化可以改质量。

Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.

三元乙丙橡胶（EPDM）是乙、丙和少量非共轭烃的共聚物。

The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.

烃和基芳烃是非不稳定的组分，可聚合产生凝胶。对于给定烃和烷基芳烃，氢化可以改善产品质量。

Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.

三元乙丙橡胶（EPDM）是乙烯、丙烯非共轭二烯烃的共聚物。

The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.

二烯烃烯烃是非不稳定的组分，可聚合产生凝胶。对于给定烯烃烃，氢化可以改善产品质。

Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.

三元丙橡（EPDM）烯、丙烯和少量非共轭二烯烃的共聚物。

The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.

二烯烃和烯基芳烃非不稳定的组分，聚合产生凝。对于给定烯烃和烷基芳烃，氢化善产品质量。

Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.

三元乙丙橡胶（EPDM）是乙烯、丙烯和少量非共轭二烯的共聚物。

The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.

二烯和烯基芳是非不稳定的组分，可聚合产生凝胶。对于给定烯和烷基芳，氢化可以改善产品质量。

Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.

三元乙丙橡胶（EPDM）是乙烯、丙烯和少量非共轭二烯烃的共聚物。

The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.

二烯烃和烯基芳烃是非不稳定的组分，可聚合产生凝胶。对于给定烯烃和烷基芳烃，氢化可以改善产品质量。

Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.

三橡胶（EPDM）是烯、烯和少量非共轭二烯烃的共聚物。

The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.

二烯烃和烯基芳烃是非不稳定的组分，可聚合生凝胶。对于给定烯烃和烷基芳烃，氢化可以改善量。