The separation rate of pathogenic bacteria in lower airway infection in the RICU was 75%. 85% of them were gram negative bacilli, 4.6% were gram positive cocci.是什么意思_The separation rate of pathogenic bacteria in lower airway infection in the RICU was 75%. 85% of them were gram negative bacilli, 4.6% were gram positive cocci.在线翻译_英语_读音_用法_例句