老年人上消化道出血
elderly patients with upper gastrointestinal bleeding
老年胃肠道肿瘤
senile gastrointestinal tumor
老隧道的变形
Deformation of old tunnel
泪道冲洗
probing of lacrimal passage
Irrigation of lacrimal passage
Tears washing
syringing of lacrimal passages
Dacryosolen lavage
Irrigation
Lacrimal passages- flushing
泪道冲洗器
lacrimal passage irrigator
冷热水管道升压
Boosting of Cold and Hot Water Pipes