Certificate given to a ship arriving from a foreign port, by the port's health officer, indicating that there are no cases of disease aboard the ship and the health of all on board is good.

Category:Sea Words

A permit by the port doctor for an incoming vessel, being clear of contagious disease, to have the liberty of the port.

Category:Sea Words

Lifts temporary quarantine of a vessel; granted pratique by Health Officer.

Category:Sea Words

PRC

Peoples Republic of China.(flag)

Category:Abbreviations

An audible or visual discharge at a pressure slightly lower than the set pressure on a valve. Warns the operator that the valve is about to open.

Category:Sea Words

A process employed in the shipment of citrus fruits and other perishable commodities. The fruit is packed and placed in a cold room from which the heat is gradually extracted. The boxes of fruit are packed in containers that have been thoroughly cooled an ...

Category:Sea Words

Introduction to a Charter Party

Category:Sea Words

One of the relatively scarce and valuable metals: gold, silver, and the platinum-group metals. Also called noble metal(s).

Amount of water, expressed as a depth or as a mass, which would be obtained if all the water vapor in a specified column of the atmosphere were condensed and precipitated.

Category:Meteorology

Any and all forms of water particles, liquid or solid, that fall from the atmosphere and reach the ground.

Category:Meteorology

General term for any device that measures precipitation: principally a rain gauge or snow gauge.

Category:Meteorology

Hardening caused by the precipitation of a constituent from a supersaturated solid solution. See also age hardening and aging.

Artificial aging in which a constituent precipitated from a supersaturated solid solution.

For a given location, a measure of the long-range effectiveness of precipitation in promoting plant growth. Also called precipitation-evaporation index.

Category:Meteorology

Same as precipitation-evaporation ratio.

Category:Meteorology

Same as precipitation- effectiveness index.

Category:Meteorology

A measure of long-term precipitation effectiveness. The ratio of the normal annual rainfall to the normal annual evaporation.

Category:Meteorology

For a given locality and month, an empirical expression devised for the purpose of classifying climates numerically on the basis of precipitation and evaporation.

Category:Meteorology

Pre-Cooling of intake air for compressors and Blowers.

Category:Sea Words

Is a heat exchanger located immediately preceding an ejector to condense and remove a portion of the vapor in the mixture and thus reduce the total lb/hr to be handled.

Category:Sea Words