“导水管”用英语怎么说？

报告23例大前庭导水管综合征.This paper reports 23 cases of the large vestibular aqueduct syndrome.中脑导水管周围灰质损害导致上视麻痹(摘译)Upgaze Paralysis Caused by Lesion of the Periaqueductal Gray Matter.这座新房子底下有个导水管.There is an aqueduct underneath t...