air rate
41Air & Space 18A — Infobox Aircraft name=Air Space 18A caption= type=Autogyro manufacturer=Air and Space Manufacturing, Inc. developer=Raymond E. Umbaugh designer=Gilbert Devore first flight=1964 introduced=1965 retired= status=Out of production primary user= more… …
42Air transport in China — As a result of the rapidly expanding civil aviation industry, by 2007 China had around 500 airports of all types and sizes in operation, about 400 of which had paved runways and about 100 of which had runways of 3,047 m or shorter. There also… …
43Air mass — For other uses, see Air mass (astronomy) and Air mass (solar energy). Different air masses which affect North America, as well as othe …
44Air conditioning — The term air conditioning refers to the cooling and dehumidification of indoor air for thermal comfort. In a broader sense, the term can refer to any form of cooling, heating, ventilation or disinfection that modifies the condition of air.… …
45Air-to-air missile — An air to air missile (AAM) is a guided missile fired from an aircraft for the purpose of destroying another aircraft. It is typically powered by one or more rocket motors, usually solid fuelled but sometimes liquid fuelled. Ramjet engines, as… …
46Air Force Space Command — Infobox Military Unit unit name= Air Force Space Command caption=Emblem of the AFSPC dates= September 1982–Present country= United States branch= Air Force type= Major Command role= Development and operation of military space technologies size=… …
47Air filter — An air filter is a device which removes solid particulates such as dust, pollen, mold, and bacteria from air. Air filters are used in applications where air quality is important, notably in building ventilation systems and in engines, such as… …
48Air dryer — A compressed air dryer is a device for removing water vapor from compressed air. Compressed air dryers are commonly found in a wide range of industrial and commercial facilities. The process of air compression concentrates atmospheric… …
49Air cooler — is designated for refrigeration and condensation of process gas and condensate flows. It operates in an open air process site in moderate and cold climate regions. The process flow temperature is −40 to 300°С at pressures up to 7.5 MPa. Heat… …
50air mass — a body of air covering a relatively wide area, exhibiting approximately uniform properties through any horizontal section. [1890 95] * * * In meteorology, a large body of air having nearly uniform conditions of temperature and humidity at any… …
