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DGPS Reference Station (choke ring antenna)A reference station calculates differential corrections for its own location and time. Users may be up to 200 nautical miles (370 km) from the station, however, and some of the compensated errors vary with space: specifically, satellite ephemeris errors and those introduced by ionospheric and tropospheric distortions.
Fire suppression systems have an incredibly large variety of applications, and as such, there are many different types of suppression systems for different applications being used today. Of these, there are some that are still in use but are no longer legal to manufacture and produce.
The price of gold, as denominated in US dollars, was stable until the collapse of the Bretton Woods system in the mid-1970s. The Bretton Woods system of monetary management established the rules for commercial relations among the United States, Canada, Western European countries, and Australia and other countries, a total of 44 countries [1] after the 1944 Bretton Woods Agreement.
Small scale aerobic systems generally use one of two designs, fixed-film systems, or continuous flow, suspended growth aerobic systems (CFSGAS). The pre-treatment and effluent handling are similar for both types of systems, and the difference lies in the aeration stage.
The Piper PA-18 Super Cub is a two-seat, single-engine monoplane.Introduced in 1949 by Piper Aircraft, it was developed from the PA-11 Cub Special, and traces its lineage back through the J-3 Cub to the Taylor E-2 Cub of the 1930s.
The Piper PA-32R is a six-seat (or seven-seat), high-performance, single engine, all-metal, fixed-wing aircraft produced by Piper Aircraft of Vero Beach, Florida.The design began life as the Piper Lance, a retractable-gear version of the Piper Cherokee Six.
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