The ability of a machine to perform those activities that are normally thought to require intelligence; also the branch of computer science concerned with the development of machines having this ability.
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DEPOSITS
Oil-insoluble materials that result from oxidation and decomposition of lube oil and contamination from external sources and engine blow-by. These can settle out on machine or engine parts. Examples are sludge, varnish, lacquer and carbon.
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ACOUSTIC
A term pertaining to sound, or the science of sound.
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GREENWICH HOUR ANGLE
Angular distance west of the Greenwich celestial meridian; the arc of the celestial equator, or the angle at the celestial pole, between the upper branch of the Greenwich celestial meridian and the hour circle of a point on the celestial sphere, measured westward from the Greenwich celestial meridian throug
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GUINEA CURRENT
A North Atlantic Ocean current flowing eastward along the south coast of northwest Africa into the Gulf of Guinea. The Guinea Current is the continuation of the Atlantic Equatorial Countercurrent augmented by the eastern branch of the Canary Current.
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EROSION
The progressive removal of a machine surface by cavitation or by particle impingement at high velocities.
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CATASTROPHIC FAILURE
Sudden, unexpected failure of a machine resulting in considerable cost and downtime.
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BREAKDOWN MAINTENANCE
Maintenance performed after a machine has failed to return it to an operating state.
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FERROGRAPHY
An analytical method of assessing machine health by quantifying and examining ferrous wear particles suspended in the lubricant or hydraulic fluid.
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DELAMINATION WEAR
A complex wear process where a machine surface is peeled away or otherwise removed by forces of another surface acting on it in a sliding motion.
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HYDRAULICS
Engineering science pertaining to liquid pressure and flow.
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