Abbreviation for precipitation-evaporation quotient.

A gauge that measures engine revolutions per minute.

The shape of a sail, with regard to its efficiency. Controls such as the cunningham, boom vang, outhaul, traveler, halyards, leech line, sheets, and the bend of the mainmast all can affect sail shape. Also sail trim.

Document that identifies goods imported when placed in a bonded warehouse. The duty is not imposed on the products while in the warehouse but will be collected when they are withdrawn for delivery or consumption.

See R-Value.

(DOL) The daily record setting out the prices of all trades in shares and other securities conducted on.

Electronic Chart Display and Information SystemBased on vectorial representation of features, this system is the best available as it can be coupled to many other devices. Unfortunately since the availability of GPS positioning many hydrographic informati ...

Energy that transmits away from its source in all directions.

A semiconductor material that is left intrinsic, or undoped so that the concentration of charge carriers is characteristic of the material itself rather than of added impurities.

[meaning]

The situation of two vessels, lying alongside one another, so near that their yard-arms cross or touch.

A positive number that characterizes the combining power of an element for other elements, as measured by the number of bonds to other atoms that one atom of the given element forms upon chemical combination: hydrogen is assigned valence 1, and the valenc ...

The unit of acceleration in the centimeter-gram-second system of units, equal to one cm per sec2. Commonly used in gravimetry.

Officer's recreation area.

[meaning]

The control ring in a valve which surrounds the seat, used to control pre open and blow down.

A two masted sailboat with the shorter mizzen mast placed aft of the rudder post. A ketch is similar, but the mizzen mast is forward of the rudder post.

The kelvin unit of thermodynamic temperature, is the fraction 1/273,16 of the thermodynamic temperature of the triple point of water. The triple point of water is the equilibrium temperature (o,01

Cargo Not Otherwise Specified. Usually the rate entry in a tariff that can apply to commodities not covered under a specific item or subitem in the applicable tariff.

Compressors that operate with an intake pressure below atmospheric and discharge pressure usually atmospheric or slightly higher.