氧是维护生命的基础，血氧饱和度是人体极为重要的生理参数。
Oxygen is the base for maintaining life. Oxygen saturation are the very important physiological parameters of human body.
氧是维护生命的基础，血氧饱和度是人体极为重要的生理参数。
Oxygen is the base for maintaining life. Oxygen saturation are the very important physiological parameters of human body.
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