- 行业: Aviation
- Number of terms: 16387
- Number of blossaries: 0
- Company Profile:
Aviation Supplies & Academics, Inc. (ASA) develops and markets aviation supplies, software, and books for pilots, flight instructors, flight engineers, airline professionals, air traffic controllers, flight attendants, aviation technicians and enthusiasts. Established in 1947, ASA also provides ...
A heavy wax-like grease, used to protect cables, bolts, and other types of fittings from rust and corrosion when they are exposed to water. Par-al-ketone is also used to protect metal objects that are to be stored for long periods of time.
Industry:Aviation
A heavy wheel used to smooth the pulsations in a drive system. A reciprocating engine delivers its power in a series of pushes as each cylinder, in turn, goes through its power stroke. A heavy flywheel stores kinetic energy from each power stroke and gives it back by keeping the engine turning between power strokes. An airplane engine does not need a flywheel, because the propeller serves the same purpose.
Industry:Aviation
A heavy, brownish-black mineral found in crude oil. Asphalt is used as a base for some acid-resisting paints.
Industry:Aviation
A heavy, colorless, unstable liquid used as a bleaching agent, an antiseptic, and a fuel for liquid-propellant rocket engines.
Industry:Aviation
A heavy, silvery-white, malleable, metallic chemical element. Thorium’s symbol is Th, its atomic number is 90, and its atomic weight is 232. Thorium is slightly radioactive and is used as an alloy with tungsten to make filaments for incandescent electric lights. It is also a potential source of nuclear energy.
Industry:Aviation
A heavy, silvery-white, metallic chemical element in the actinide group. Uranium’s symbol is U, and its atomic number is 92. An isotope of uranium, U-235, is used as one of the basic atomic fuels. When U-235 is bombarded with neutrons, it changes into smaller atoms, and in making this change, it releases neutrons and produces an enormous amount of heat.
Industry:Aviation
A heavy, silvery-white, metallic chemical element that is resistant to nearly all acids. Platinum’s symbol is Pt, its atomic number is 78, and its atomic weight is 195.09. Because platinum is able to withstand extremely high temperatures, it is used as the electrodes in some fine-wire spark plugs. Platinum’s appearance is pleasing, and it is so durable it is used for jewelry.
Industry:Aviation
A heavy, thick, tar-base paint used as a water and acid-resistant covering. Bituminous paint is used around battery compartments for lead-acid batteries and in some compartments of flying boat hulls and seaplane floats.
Industry:Aviation
A heavy, volatile, corrosive, reddish-brown, nonmetallic, liquid chemical element. Bromine’s symbol is Br, its atomic number is 35, and its atomic weight is 79.904. Bromine is used as an antiknock additive for gasoline and as a component in dyes.
Industry:Aviation
