Public Resolution which requires that U.S. Government financed cargoes (Eximbank) must be shipped 100% in U.S. flag ships, but that the requirement may be waived up to 50% in some cases.
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.
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 ...
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.
Any and all forms of water particles, liquid or solid, that fall from the atmosphere and reach the ground.
General term for any device that measures precipitation: principally a rain gauge or snow gauge.
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.
A measure of long-term precipitation effectiveness. The ratio of the normal annual rainfall to the normal annual evaporation.
For a given locality and month, an empirical expression devised for the purpose of classifying climates numerically on the basis of precipitation and evaporation.