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航空术语词典 Dictionary of Aeronautical Terms 上(85)

时间:2011-03-11 23:11来源:蓝天飞行翻译 作者:admin 点击:


bomber. A military aircraft designed to carry a bomb load over enemy territory and release it in such a way that it will do the maximum amount of damage.
bond (chemical force). The strong attractive force that holds the atoms together in a molecule.
bonded structure. Aircraft structure joined together by chemical methods, rather than mechanical fasteners.
Components made of laminated fiberglass, honeycomb material, and the advanced composite materials are examples of aircraft bonded structure.
Bonderizing. The registered trade name for a patented process of coating steel parts with a phosphate film. Bonderizing protects the parts from corrosion.
bonding (electrical). The process of electrically connecting all isolated components to the aircraft structure. Bonding provides a path for return current from the components and provides a low-impedance path to ground to minimize radio interference from static electrical charges collected on the component.
Shock-mounted instrument panels have bonding braids connected across the shock mounts, so that return current from the instruments can flow into the main structure and thus return to the alternator or battery.
bonding (structural). A method of joining parts by using chemical adhesives, rather than any form of mechanical fastener.
bonding agent (structural). An adhesive used to bond together materials used in aircraft construction.
bonding jumper (electrical systems). A low-resistance wire or metal strap used to connect a structural component or an electrical component to the basic structure of an aircraft. Bonding jumpers carry the return current from an electrical component back to the battery.
Small bonding jumpers connect flight control surfaces to the main structure to carry static electrical charges that build up when air flows over the surface into the main structure. Bonding prevents sparks that could cause radio interference.
Boolean algebra (mathematics). A system of mathematical logic used to permit computations to be performed by binary electrical circuits.
Gates such as AND, OR, NAND, NOR, and EXCLUSIVE OR are used to make electrical models of the Boolean algebraic functions.
boost (manifold pressure). A term for manifold pressure which has been increased above atmospheric pressure by a supercharger.
boost charge (batteries). A constant-voltage charge given to a partially discharged storage battery for a short period of time.
boost pump (aircraft fuel system component). An electrically driven centrifugal pump mounted in the bottom of the fuel tanks in large aircraft.
Boost pumps are used to provide a positive flow of fuel under pressure to the engine for starting and to serve as an emergency backup in the event the engine-driven pump should fail. They are also used to transfer fuel from one tank to another and to pump fuel overboard when it is being dumped.
Boost pumps maintain pressure on the fuel in the line to the engine-driven pump to prevent a vapor lock forming in these lines.
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