Results: (1) Hyperoxic lung injury was mainly featured with destroyed alveoli, thickened alveoli septum and the deposition of collagen fibers.

结果：1高氧组肺损伤主要表现为肺泡结构破坏、大小不一、肺间隔增厚以及胶原纤维沉积。

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Destroyed alveolars, decreased number of alveoli, local atelectasis and thickened alveoli septum were observed in the hyperoxic-damaged lungs of the 7th and 14th day.

结果：1．7天和14天高氧组肺组织出现肺泡结构破坏明显、肺泡大小不等、数目较少、局部肺不张、肺间隔明显增厚；

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