航空術(shù)語詞典Dictionary of Aeronautical Terms 中

時(shí)間：2011-03-11 23:13來源：藍(lán)天飛行翻譯 作者：admin 點(diǎn)擊：次

international airport. An airport having customs service for passengers arriving from foreign countries.
international date line. The 180° meridian of longitude. The international date line is on the opposite side of the earth from the prime meridian, which passes through Greenwich, England.
International Flight Information Manual. See IFIM.
International Morse Code. A group of dot and dash combinations which have been agreed upon internationally to represent the letters of the alphabet, numbers, and certain punctuation symbols. Morse code is used for some types of radio communications, and for the code identifiers of VOR and VORTAC stations, and the localizer in an instrument landing system. See International Phonetic Alphabet and Morse Code in Appendix 4.
International Phonetic Alphabet. An internationally agreed upon system of code words identifying the letters of the alphabet and numbers. The words in the phonetic alphabet have been carefully chosen so that people of all language backgrounds can pronounce them. See International Phonetic Alphabet and Morse Code in Appendix 4.
International System of Units. The system of metric units agreed upon by the General Conference on Weights and Measures. The International System of Units, abbreviated SI, is based on the following units: meter, kilogram, second, ampere, candela, degrees Kelvin, hertz, radian, newton, joule, watt, coulomb, volt, ohm, farad, tesla, and weber.
interphone system. A system for communication between crew members of an aircraft. Interphone communications are normally conducted using the same microphone and earphones or speakers used for radio communications. A selector switch is positioned in such a way that the interphone signals do not enter the radio transmitter circuits.
interplane struts (biplane component). Struts located between the two wings of a biplane, usually near the wing tips. Interplane struts attach to the front and rear wing spars and are normally N-shaped or I-shaped.
interpole (electrical machine component). A field pole in a compound-wound generator used to minimize armature reaction. Armature reaction is the distortion of the magnetic field produced by the field coils caused by the magnetic field produced by current flowing in the armature. The amount of armature reaction varies with the armature current. Armature reaction causes a voltage across the commutator segments shorted by the brushes, and this produces sparks.
Interpoles are located between each of the regular field poles, and the interpole coils are in series with the armature so all the armature current flows through them. The magnetic fields produced by the interpole coils cancel the distortion caused by the armature field, and the brushes short across segments of the commutator where there is no potential difference and therefore no sparking.
inter-rib bracing (fabric-covered wing component). Bracing between the ribs of a fabric-covered wing made of reinforcing tape wrapped around the rib cap strips midway between the spars. Inter-rib bracing holds the ribs in the correct position until they are laced to the fabric.

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