保持畅通的沟通管道 Keep Communication Channels Open

请保持过道畅通 Please keep gateways clear

保持血管畅通 KVO ; h KVO

保持静脉畅通 KVO

保持大便通畅 keep bowels open ; keep a normal bowel movement ; to keep one's bowels open

保持气道通畅 keep the airway open

帮助保持支气管通畅 Helps clear bronchial congestion

请保持手机畅通 Keep phones free ; Please keep mobile phone unobstructed ; Please keep the phone unblocked ; Your cell phone

保持引流通畅 Keep drips fluid ; Keep drainage obstruction