【电】 cavitation noise
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
corrode; erode; lose
cacophony; noise; souffle
【化】 unpitched sound
【医】 murmur; souffle; susurration; susurrus