【计】 via hole
access; gangway; gateway; passageway; route; thoroughfare
【化】 opening
【医】 closed circuit; iter; viae
【经】 passage
aperture; bore; foramen; hole; os; ostium; vulva
【化】 hole; opening
【医】 apertura; aperturae; aperture; bore; coel-; foramen; foramina; hiatus
mesh; opening; pore; Pori; porosity; porus; trema