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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.

是非常不稳定的组分,聚合产生凝胶。对于给定,氢化以改善产品质量。

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3G, 401(K), a,

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史蒂写作

They drank because it's what alkies are wired up to do.

他们是因为停不下来。

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3G, 401(K), a,
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