European softwood timber of low weight and straight grain prized for masts.
Related Terms |
ABSORBER
That part of the low side of an absorption system, used for absorbing vapor refrigerant.
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COMPOUND
(1) chemically speaking, a distinct substance formed by the combination of two or more elements in definite proportions by weight and possessing physical and chemical properties different from those of the combining elements. (2) in petroleum processing, generally connotes fatty oils and similar materials foreign to petroleum added to lubricants to impart special properties.
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CONTAMINANT CAPACITY
The weight of a specified artificial contaminant that must be added to the influent to produce a given differential pressure across a filter at specified conditions. Used as an indication of relative service life. Also known as Dirt capacity, Dust capacity
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CAPACITY PLAN
A plan outlining the spaces available for fuel, cargo, ballast, fresh water, etc, with guides on weight and volume for spaces at various drafts and displacements
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REFRIGERATOR
A device to transfer heat from a low temperature to a high temperature medium.
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DERRICK
A device for hoisting and lowering heavy weights, cargo, stores, etc
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GROUND LOG
A device for determining the course and speed over the ground in shallow water consisting of a lead or weight attached to a line. The lead is thrown overboard and allowed to rest on the bottom. The course over ground is indicated by the direction the line tends and the speed by the amount of line paid out in a unit of time.
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HALF-TIDE LEVEL
A tidal datum midway between mean high water and mean low water. Mean sea level may coincide with half-tide level, but seldom does; the variation is generally about 3 centimeters and rarely exceeds 6 centimeters. Also called MEAN TIDE LEVEL.
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HIGH WATER STAND
The condition at high water when there is no sensible change in the height of the water. A similar condition at low water is called LOW WATER STAND
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BRIGHT STOCK
A heavy residual lubricant stock with low pour point, used in finished blends to provide good bearing film strength, prevent scuffing, and reduce oil consumption. Usually identified by its viscosity, SUS at 210°F or cSt at 100°C.
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