不知道视频中这装置是干什么的
但这装置对支气管肺部感染一定十分有益，比如著名的Covid-19 https://t.co/jJPpeufcqc https://video.twimg.com/amplify_video/1834090002911035393/vid/avc1/720x900/MPa829XxOxJTquDd.mp4?tag=16 https://video.twimg.com/amplify_video/1834090002906841088/vid/avc1/720x900/5zXLPS_CU9ehstdH.mp4?tag=16