ballast
81ballast tank — noun : a tank in the hold of a ship that can be pumped full of or free from water ballast * * * ballast tank, a compartment in a ship or submarine which may be filled with water or emptied by means of pumps. Ballast tanks help control the… …
82Ballast pond — Wooden ships used to have their hulls waterproofed using tar. To facilitate the application of tar below the waterline, shipyards built a square ballast pond in shallow water with an entrance port on one side. A ship would enter the ballast pond… …
83ballast pocket — Railroads. a depression that is formed beneath the ballast layer by penetration of ballast particles into the subgrade and that tends to collect moisture. * * * …
84Ballast Factor — The ratio of light output of a fluorescent lamp operated on a ballast to the light output of a lamp operated on a standard or reference ballast …
85ballast resistance — balastinė varža statusas T sritis fizika atitikmenys: angl. ballast resistance vok. Ballastwiderstand, m rus. балластное сопротивление, n pranc. résistance ballast, f …
86ballast resistor — noun a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations) (Freq. 1) • Syn: ↑ballast, ↑barretter • Hypernyms: ↑resistor, ↑resistance * * * ballast (def. 5a) …
87ballast line — noun : the water line of a ship in ballast * * * Naut. the level to which a vessel is immersed when in ballast …
88ballast pocket — Railroads. a depression that is formed beneath the ballast layer by penetration of ballast particles into the subgrade and that tends to collect moisture …
89ballast line — Naut. the level to which a vessel is immersed when in ballast. * * * …
90ballast tank — noun One of several external or internal tanks fitted in submarines; when filled with seawater they allow the boat to submerge; when emptied using compressed air buoyancy is restored and the vessel rises towards the surface. Auxiliary ballast… …
