lacrimal l duct泪管
lacrimal tear duct泪腺
lacrimal duct reconstruction泪道再造术
lacrimal duct stent鼻泪管支架
lacrimal duct fragmentation泪小管断裂
under lacrimal duct occlusion下泪道阻塞
inferior lacrimal duct下泪小管
radiography of lacrimal duct泪道造影术
N（名词） a short tube in the inner corner of the eyelid through which tears drain into the nose 泪管 (Nontechnical name tear duct)