Dictionary of Aviation 航空词典下

时间：2011-02-23 15:20来源：蓝天飞行翻译 作者：航空 点击：次

occasional /.ke.(.)n(.)l/ adjec-tive happening from time to time . occasional rain periodic rain . occa-sional turbulence turbulence happen-ing from time to time
occluded front /.klud.d frnt/
noun a weather front created when air is forced upward from the Earth’s surface, as when a cold front overtakes and undercuts a warm front . Jet streams are very rare near occluded fronts because of the much smaller tempera-ture gradient across the fronts.
occlusion /.klu(.)n/ noun the forcing of air upward from the Earth’s surface, as when a cold front overtakes and undercuts a warm front . If the air ahead of the warm front is less cold than the air behind the cold front, the cold front will undercut the less cold air and form a cold occlusion.
occupant /.kjυp.nt/ noun a person who has a seat in an aircraft . occu-pants the crew plus passengers . In-flight emergency procedures are designed to successfully combat air-borne emergencies which threaten the safety of the aircraft and its occupants.
occupy /.kjυpa./ verb 1. to have a position, to be in a place . The passen-ger is occupying the wrong seat. 2. to busy oneself . Once an evacuation process is under way the crew will be fully occupied carrying out emergency drills.
occur /.k/ verb to happen . Heavy rains occur during the monsoon season.
. Tropical revolving storms generally occur from June to October. . An acci-dent occurred on June 12th.
occurrence /.kr.ns/ noun a hap-pening or event . There were a number of occurrences of hijacking in the eight-ies. . The occurrence of the equatorial jet stream is due to a temperature gradi-ent with colder air to the south.
ocean /.υ.(.)n/ noun 1. the body of salt water which covers the earth (NOTE: This is a chiefly American usage: Brit-ish English prefers the word sea.) 2.
any of the major sea areas of the world
. the Atlantic Ocean
COMMENT: The five oceans are: the
Atlantic, the Pacific, the Indian, the
Arctic and the Antarctic (or Southern).

oceanic /.υ.in.k/ adjective refer-
ring to the oceans . The trade winds maintain their direction over the oce-anic areas, especially the Pacific, more than over land areas. . an oceanic crossing a flight across sea or ocean
octa /.kt./ noun same as okta octane rating /.kte.n re.t../ noun
the ability of the fuel to resist detona-tion, i.e. the higher the number, the greater is the fuel’s resistance to detona-tion
odd /.d/ adjective 1. strange, peculiar
. an odd situation . The fact that moist air is lighter than an equivalent volume of dry air seems odd to many people. 2.
. odd tenth an odd decimal, e.g. 0.1, 0.3, etc. . Frequency allocation of localisers in the VHF band is 108–112 MHz at odd tenths e.g. 108.1 and 109.3, the even decimals being allocated to VOR facilities. 3. indicating a number a little greater than the approximate number given . it is 60-odd miles to our destination it is a little more than 60 miles to our destination

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