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Dictionary of Aviation 航空词典 上

时间:2011-02-23 15:18来源:蓝天飞行翻译 作者:航空 点击:


. Longerons are heavy-duty steel mem-bers.
heavy landing /hevi lnd../ noun
a routine landing in which the aircraft makes contact with the surface with more force than usual, thereby possibly causing damage to the undercarriage .
The pilot reported a heavy landing.
hedgehop /hedh.p/ verb to fly at
very low height above the ground height /ha.t/ noun the vertical dis-tance of a point, level or object meas-ured from a particular point, e.g. sea level . Pressure decreases with increas-ing height. . height of the aircraft the vertical distance, measured in feet, of the aircraft above the surface of the earth
held /held/ . hold heli /heli/ noun a rotary-wing aircraft heliborne /helib.n/ adjective trans-
ported by helicopter helicopter /hel.k.pt./ noun an air-craft with one or more rotors rotating around vertical axes which provide lift and control . Helicopter operations are carried out at the airport.
helicopter rotor /hel.k.pt. r.υt./
noun two or more rotating blades, known as the main rotor, which provide lift and thrust for a helicopter;
helideck /helidek/ noun a deck on something such as a ship or offshore oil platform that is used as a landing area for helicopters
heliograph /hil..rɑf/ noun an
instrument with a mirror to send mes-sages by reflecting the sun . Helio-graphs enable reflected sunlight to be directed to a ship or aircraft in periods of direct sunlight.
helipad /helipd/ noun an area
where helicopters take off and land heliport /helip.t/ noun an airport designed for helicopters
helistop /helist.p/ noun a place where helicopters can take off and land, but usually one that does not have the support facilities found at a heliport
helo /hil.υ/ noun 1. a rotary-winged aircraft 2. same as heliport
hemisphere /hem.sf../ noun half a
sphere Hertz /hts/ noun the SI unit of fre-quency, defined as the number of cycles per second of time. Abbreviation Hz
HF abbreviation high frequency high /ha./ adjective 1. having great vertical distance . a high mountain 2. great, large, a lot . high engine rpm fast engine speed . high pressure a lot of pressure . high reliability good reli-ability . high speed a fast speed . high temperature a hot temperature . noun an area of high atmospheric pressure .
There is a high over the British Isles.
high frequency /ha. frikw.nsi/, high frequency band /ha. frikw.nsi bnd/ noun a radio com-munications range of frequencies between 3–30 MHz. Abbreviation HF
high-performance /ha. p. f.m.ns/ adjective a system which provides better-than-usual output . an engine with a high performance . Some high-performance engines have coolant and oil system thermostats which aid warming-up.
high performance aircraft /ha. p.f.m.ns e.krɑft/ noun an aircraft capable of flying faster, higher or with more manoeuvrability than normal air-craft
hijack /ha.dk/ verb to take over control of an aircraft by one or several unauthorised person or persons with the intention of forcing the crew to fly it to a different destination . The airliner was hijacked on its way to Paris.
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