Ventilation-induced lung injury is often studied in animal models by using ventilation strategies with high-tidal volumes and high-oxygen concentration over a relatively short period of time.

呼吸机相关性肺损伤研究常用大潮气量和高浓度氧策略的动物模型，使用时间相对较短。

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This and the X-ray spectrum, which exhibits a high concentration of iron atoms relative to oxygen and silicon, convincingly show that the ejecta are the remains of an exploded white dwarf star.

这幅图连带X射线光谱（显示出了铁相对氧与硅的高度集中）令人信服地说明，抛出的物质是爆发白矮星的残余。

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