Rats in hypoxia groups were inhaled with the mixture of nitrogen gas (0.95 volume fraction) and oxygen (0.05 volume fraction) to establish acute hypoxia models, 2 hours every day and normoxia at other points of time that was the same as normal group.是什么意思_Rats in hypoxia groups were inhaled with the mixture of nitrogen gas (0.95 volume fraction) and oxygen (0.05 volume fraction) to establish acute hypoxia models, 2 hours every day and normoxia at other points of time that was the same as normal group.在线翻译_英语_读音_用法_例句