“换气”怎么读

“换气”的英语可以翻译为：take a breath ，aeration，change of air ...

从溶剂浓度的角度来看, 凹印的室内换气管理是必须的.From solvent concentration point of view, gravure micyoco pissed management is necessary.观察胸廓起伏并行肺部听诊明确是否充分换气.H . Observe lung inflations and auscultate the chest adequate ventilation.学会换气让你觉得完全...