This led hospitals in the 1960s to shift towards positive pressure ventilation.

这使得医院在六十年代转而开始使用正压式呼吸机。

This room has positive pressure ventilation.

- 这个房间有正压通风。

There are two main ways ventilators can work— pumping air into the patient's lungs through positive pressure ventilation, or allowing air to be passively drawn in through negative pressure ventilation.

呼吸机有两种主要的工作方式——通过正压式呼吸将空气冲入病人肺部，或通过负压式呼吸让空气被动吸入。