正碳离子是有机化学反应过程中一种活泼的反应中间体，对于它的研究已经有100多年的历史。
Carbenium ion is an active intermediate state in organic reactions, which has been investigated for over 100 years.
正碳离子是有机化学反应过程中一种活泼的反应中间体，对于它的研究已经有100多年的历史。
Carbenium ion is an active intermediate state in organic reactions, which has been investigated for over 100 years.
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