The range of operating conditions of a device within which operating influences are negligible. The range is usually narrow. Reference operating conditions are the conditions under which reference performance is stated and the base from which the values o ...

A heating system that uses only outside air for combustion and vents combustion gases directly to the outdoors. These systems are less likely to backdraft and to negatively affect indoor air quality.

Reversing the position of an object or line.

This designates the resistance of a material to heat conduction. The greater the R-value the larger the number.

Tightly woven cloth used for sails, awnings, covers, dodgers and biminis; slang for sails.

A wide range of indices including shares, stocks and fixed interest securities published by the.

A projecting aperture at the end of a tube, pipe etc. serving as an outlet for compressed air. Reduces the demand on the compressor by generating the highest thrust and volume for the lowest possible air consumption.

An assurance policy on the life of an individual where weekly or monthly premiums are regularly paid.

Tanker, Specified Liquefied Gases.

The change in direction of a ray of light when it passes through one media to another with differing optical densities.

Association of Private Client Investment Managers and Stockbrokers An association formed in 1990 to represent the interests of stockbroking and investment.

A letter of credit that requires the beneficiary to present only a draft or a receipt for specified funds before receiving payment.

A security such as a bond or note with specified interest, representing a loan which is repayable at.

Sailing close hauled. Sailing toward the wind as much as possible with the wind coming from the bow.

A wave disturbance in airflow due to some barrier in the flow. i.e. a hill or mountain.

Delivered Ex Ship

An absolute temperature scale. ((

To keep a weather eye is to be on the alert (heads up).

One who earns his living by service at sea.

The ability of a non-water-soluble fluid to form an emulsion with water.