ventilating equipment

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• Fire apparatus — A fire apparatus, fire engine, fire truck, or fire appliance is a vehicle designed to assist in fighting fires, by transporting firefighters to the scene, and providing them with access, water or other equipment. In some areas, the terms fire… …   Wikipedia

• technology, history of — Introduction       the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …   Universalium

• Demand load — In telecommunication, the term demand load can have the following meanings: In general, the total power required by a facility. The demand load is the sum of the operational load (including any tactical load) and nonoperational demand loads. It… …   Wikipedia

• List of historical sites related to the Illinois labor movement — The following are historic points of labor history in the state of Illinois: Downstate Labor History Sites Beckemeyer Coal Miners MonumentMonument dedicated to Joseph Koch, who along with eight other local miners died in the 1947 Centralia mine… …   Wikipedia

• Ambassador Bridge — from the Canadian side of the Detroit River Official name Ambassador Bridge Carries …   Wikipedia

• Le Grand Henderson — (1901 – 1964), most often writing under the nom de plume Le Grand , was a writer and illustrator of books for all ages.Le Grand was born in 1901 in Torrington, Connecticut. [http://special.lib.umn.edu/findaid/xml/CLRC 1173.xml] He attended the… …   Wikipedia

• sewage system — Collection of pipes and mains, treatment works, and discharge lines (sewers) for the wastewater of a community. Early civilizations often built drainage systems in urban areas to handle storm runoff. The Romans constructed elaborate systems that… …   Universalium

• HVAC conservation feature —   A building feature designed to reduce the amount of energy consumed by the heating, cooling, and ventilating equipment.   U.S. Dept. of Energy, Energy Information Administration s Energy Glossary …   Energy terms

• tunnels and underground excavations — ▪ engineering Introduction        Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …   Universalium

• HVAC — may also stand for High voltage alternating current. See also: Glossary of HVAC HVAC systems use ventilation air ducts installed throughout a building that supply conditioned air to a room through rectangular or round outlet vents, called… …   Wikipedia

• building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …   Universalium