A polymerization accident happened when acetaldehyde was loading. The cause of polymerization reaction was analyzed, and prevention measures were put forward, in order to guarantee loading safety.

根据一起乙醛装车时发生的聚合事故，分析乙醛发生聚合反应的原因，提出预防措施，确保乙醛装车的安全。

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The rich world's carmakers are loading their models with ever fancier navigation, entertainment and safety gear.

ECONOMIST: When will China produce a car brand people want to drive?