e/Vent (submarine)

Information
has gloss	eng: In submarine technology a vent is a valve fitted to the top of a submarine's ballast tanks to let air escape from the top of the ballast tank and be replaced by water entering through the open Kingston valves at the bottom of the tank.
lexicalization	eng: vent
instance of	(noun) a submersible warship usually armed with torpedoes pigboat, submarine, U-boat, sub

Media
media:img	Redoutable3-vents.JPG