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

volatility /v.l.t.l.ti/ noun the ease with which a liquid changes into a gas or vapour . With kerosene-type fuels, the volatility is controlled by distillation and flash point, but with the wide-cut fuels it is controlled by distillation and the Reid Vapour Pressure test.
VOLMET /v.lmet/ noun a routine ground-to-air broadcast of meteorolog-ical information . The meteorological Operational Telecommunications Net-work Europe (MOTNE) is provided for the exchange of meteorological infor-mation needed by meteorological offices, VOLMET broadcasting sta-tions, air traffic service units, operators and other aeronautical users.
volplane /v.lple.n/ noun a glide towards the ground in an aircraft with the engine turned off . verb to glide towards the ground in an aeroplane with the engine turned off
volt /v.υlt/ noun the SI unit of electri-cal potential . The system requires a power supply of either 115 volts AC (alternating current), 28 volts DC (direct current), or both. Abbreviation
V voltage /v.υlt.d/ noun electrical force measured in volts . As an installed battery becomes fully charged by the aircraft generator, the battery voltage nears its nominal level and the charging current decreases.
volume /v.ljum/ noun 1. the
amount of space occupied by a solid, a liquid or a gas . If the pressure of a given mass of gas is maintained con-stant, the volume of gas increases as its
temperature is increased. 2. the loud-ness of a transmission . turn down the volume to make the sound less loud by adjusting the volume control

volume control /v.ljum k.n
tr.υl/ noun a knob used to adjust the
sound by making it louder or less loud VOR noun a navigational aid based on the ground, to help the pilot establish the bearings of the aircraft. Full form
very high frequency omni-direc-tional radio range
COMMENT: The VOR projects 360 radials which can be followed to fly a particular path over the ground. VORs operate on VHF frequencies between
108.0 to 177.95 MHz.

VOR bearing /vi .υ ɑ be.r../
noun the direction of the VOR transmit-ter relative to the aircraft measured in degrees
VORTAC /v.tk/ noun a system
that combines VOR and Tacan VSI abbreviation vertical speed indica-tor
V/STOL /vist.l/ noun 1. a system used by some aircraft that allows them to take off and land vertically or on a short runway 2. an aircraft that is able to take off and land vertically or on a short runway. Full form vertical and short takeoff and landing
VTOL /vit.l/ noun 1. a system used by some aircraft that allows them to take off and land vertically 2. an aircraft that is able to take off and land verti-cally. Full form vertical takeoff and landing
vulnerable /vln(.)r.b(.)l/ adjec-tive unprotected and liable to attack or damage . Some engines still retain the centrifugal type of compressor because it is simple, comparatively cheap to manufacture, robust in construction and less vulnerable to damage.

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