航空術(shù)語(yǔ)詞典 Dictionary of Aeronautical Terms 上

時(shí)間：2011-03-11 23:11來(lái)源：藍(lán)天飛行翻譯 作者：admin 點(diǎn)擊：次

aluminum electrolytic capacitor (electronic component). An electrolytic capacitor which uses strips of aluminum as the plates. An oxide film formed on the surface of the aluminum acts as the dielectric.
The aluminum plates are separated by layers of absorbent paper saturated with a liquid electrolyte.
aluminum oxide. A compound of aluminum and oxygen whose chemical formula is Al2O3. Aluminum oxide is extremely hard and is used as an abrasive.
aluminum paste (aircraft finishing material). Extremely fine flakes of aluminum suspended in a vehicle such as an oil.
Aluminum paste is mixed with clear dope to make aluminum-pigmented dope.
aluminum-pigmented dope (aircraft finishing material). Clear aircraft dope in which tiny flakes of aluminum are suspended.
When aluminum-pigmented dope is sprayed over the clear dope used on aircraft fabric, the tiny flakes of aluminum spread out and form an opaque coating that prevents ultraviolet rays from the sun damaging the clear dope and the fabric.
aluminum wool. Shavings of aluminum formed into a pad.
Aluminum wool can be used to remove corrosion products from aluminum alloy parts and also to smooth out minor scratches on the surface of aluminum sheets or tubing.
AM (amplitude modulation). A system of changing the voltage of a radio-frequency carrier to allow it to carry information.
The amplitude of the carrier is changed (modulated) by superimposing an information-carrying audio-frequency signal on it. The amplitude of the modulated carrier varies in the same way as the amplitude of the audio-frequency information wave.

amalgam. A mixture of different elements or ingredients that have been merged into a single body as a physical mixture, rather than a chemical compound. Concrete is an example of an amalgam of sand, portland cement, and gravel.
amalgamate. To combine or join ingredients to form a single body.
amateur-built aircraft. Aircraft built by individuals as a hobby rather than by factories as commercial
products. Amateur-built, or homebuilt, aircraft are not required to meet the stringent requirements imposed
on FAA-certificated commercially built aircraft.

amber. A hard, yellowish, translucent, fossilized tree resin that is currently used to make small ornaments. Centuries ago it was discovered that when a piece of amber was rubbed with wool, it attracted small bits of straw and was thus one of the materials used in early studies of electricity. ambient. Surrounding. ambient air. Air that surrounds an object. ambient air pressure. The pressure of the air that surrounds an object. ambient air temperature. The temperature of the air surrounding an object.
ambient light. The visible light that falls on a surface.
ambiguity. Not having a clear meaning. In radio navigation, 180° ambiguity is an error inherent in some of
the simpler types of direction finding equipment. Because of this error, the equipment does not show

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