黏膜活瓣分层吻合
valvula-laying anastomosis of esophagus-fundus-ven
防喷器活瓣
ram block blowout preventer
raking prop
单向活瓣支架
one-way valve stent
One-way valvular stenting
Emphysema
单向活瓣集尿袋
One-directed-valve-urine- collection-bag
单向活瓣补片
unidirectional valve patch
One-way-valved patch
叉骨形活瓣式分流器
wishbone flapper diverter