换气充分

没有充分的证据能证实，于临床评量外，再使用呼吸功能监测器，在新生儿以正压换气法急救期间的功效与安全性。

There is insufficient evidence to determine the efficacy and safety of a respiratory function monitor in addition to clinical assessment during positive pressure ventilation at neonatal resuscitation.

配气机构是发动机的换气机构，换气过程：控制气门按时关了，保证气配时充分燃烧混合气和排撂废气。

Valve bodies are engines of ventilators, ventilation process: on time and turn off the control valve to ensure full combustion gas mixed with gas and emissions.