Application of pulmonary infection control window as switching point for sequential invasive to noninvasive ventilation in treatment of severe respiratory failure of chronic obstructive pulmonary disease: a randomized controlled study是什么意思_Application of pulmonary infection control window as switching point for sequential invasive to noninvasive ventilation in treatment of severe respiratory failure of chronic obstructive pulmonary disease: a randomized controlled study在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句