oxidation polymerization

例句：

1. 1. The oxidation of iron is a chemical reactionthat occurs when iron is exposed to oxygen.
   铁的氧化是一种化学反应，当铁暴露在氧气中时会发生。
2. 2. Oxidation can lead to the formation ofharmful compounds in the environment.
   氧化可能导致环境中形成有害化合物。
3. 3. The oxidationof organic compounds is a common process inmany industrial processes.
   有机化合物的氧化是许多工业过程中常见的过程。