;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常不稳定的组分，可聚合产生凝胶。对
给定烯烃和
基芳烃，氢化可以改善产品
。
精（
alcohol）；鬼精的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常不稳定的组分，可聚合产生凝胶。对给定烯烃和基芳烃，氢化可以改善产品。
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