Objective:To discuss the difference of vital capacity(VC), expiratory reserve volume(ERV) and inspiratory capacity(IC) in chronic obstructive pulmonary disease(COPD) patients and the normal subjects after breathing helium-oxygen mixtures (heliox).是什么意思_Objective:To discuss the difference of vital capacity(VC), expiratory reserve volume(ERV) and inspiratory capacity(IC) in chronic obstructive pulmonary disease(COPD) patients and the normal subjects after breathing helium-oxygen mixtures (heliox).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句