Results it shows that the control of oxygen concentration after unchaining coupling is a vital technology in assistant breathing equipment cycled with mixed gases of helium and oxygen.
研究结果表明：氧浓度解耦控制技术是循环式氦氧混合气辅助呼吸装置设计中的一项关键技术。
2
Working with Fran Crippen showed us a great breathing drill mixed into an old standard.
弗兰·克里平的工作表明，我们进入了一个伟大的旧标准混合呼吸演习。
3
I remember the whistle of that era is like rain mixed with the sweat and powerful sound of breathing;