胸脘堵闷blockage and oppression in the chest and stomch duct
【机械工程】弯头管、弯曲管pipe elbow, duct bend
肝闰管Hering duct
鼻泪管狭窄stenosis of nasolacrimal duct
通风道air drain【建】;air duct【建】矿业;vent gutter【建】矿业
收集管collecting duct
乳管扩张症mammary duct ectasia
鼻泪管canalis nasolacrimalis【解剖】;ductus nasolacrimalis【解剖】;nasal duct【解剖】