曝光臺 注意防騙 網曝天貓店富美金盛家居專營店坑蒙拐騙欺詐消費者

magnetos in turn to check their serviceability.
2. to stop the flow of something
by using a valve
Turn off the fuel.
turn on turn on /t%n ɒn/ verb 1. to switch an
electrical device or system ‘on’
Can
you turn the light on or turn on the
light? 2. to start the flow of something
by using a valve
Turn on the fuel.
turnround turnround /t%nraυnd/ noun
unloading, loading and preparing an
aircraft for another flight and the time
taken to do this (NOTE: The word turnaround
is preferred in US English.)
twin engine aircraft twin engine aircraft /twn end"n
eəkrɑft/, twin-engined aircraft
/twn end"nd eəkrɑft/ noun an
aircraft with two identical engines
twist twist /twst/ verb to turn against
resistance
Centrifugal, bending and
twisting forces act on a propeller during
flight.
TWR TWR abbreviation aerodrome control
tower
type type /tap/ noun 1. a sort or kind

Temperature and oil pressure are critical
to any type of system. 2. a class of
things having shared characteristics

The type of undercarriage fitted to an
aircraft is governed by the operating
weight.  type of aircraft or aircraft
type all aircraft of the same basic
design
type certificate type certificate /tap s%|tfkət/
noun a document issued by an aviation
authority which indicates that the
design of a certain aircraft, engine etc
has been approved
type certificate data sheet type certificate data sheet noun a
document associated with a type certificate,
giving information about why the
certificate has been granted and general
information about the design which has
been approved. Abbreviation TCDS
type rating type rating /tap retŋ/ noun
authorisation, usually entered on a
licence, which allows the pilot to fly a
particular aircraft type
typical typical /tpk(ə)l/ adjective 1. normal,
standard  a typical fuel system a
standard type of fuel system 2. representative
of a particular class of things

The Piper Archer is a typical singleengine
light aircraft.
tyre tyre /taə/ noun a rubber covering for
a wheel (NOTE: The US spelling is tire.)
tyre creep 240
tyre creep tyre creep /taə krip/ noun the
gradual rotation of the tyre in relation to
the wheel, caused by landing
to convert
magnetic bearing into true bearing
it is necessary to apply magnetic variation
at the point at which the bearing
was taken
COMMENT: Tyre creep can lead to
damage to the tyre valve and
subsequent unwanted and possibly
dangerous deflation of the tyre.
pressure tyre pressure /taə preʃə/ noun
the air pressure in a tyre
maximum
allowable tyre pressure
U
UAR UAR abbreviation upper air route
UAS UAS abbreviation upper air space
UHF UHF abbreviation ultra high frequency
UIR UIR abbreviation upper air region
UKUK abbreviation United Kingdom
ultimate ultimate /ltmət/ adjective final,
from which no further advance can be
made
To determine the ultimate load
which a structure must be capable of
withstanding, a multiplier, called the
ultimate factor of safety is used.
The
ultimate responsibility for safety rests
with the crew.
ultra- ultra- /ltrə/ prefix beyond
ultra high frequency ultra high frequency /ltrə ha
frikwənsi/, ultra high frequency
band /ltrə h a  f rikwənsi  bnd/
noun a radio frequency range between
300 MHz and 3000 MHz. Abbreviation
UHF
ultralight ultralight /ltrəlat/ noun a small
single-seat or two-seat aircraft constructed
of light materials and powered
by a small motor, flown mainly for recreation
ultrasonic ultrasonic /ltrə|sɒnk/ adjective
referring to frequencies in the range of
20,000 Hz which cannot be heard by the
human ear
ultrasonic inspection ultrasonic inspection
/ltrəsɒnk n|spekʃ(ə)n/ noun a
non-destructive inspection of materials
using extremely high frequency vibrations.
Also called ultrasonic detection
ultraviolet ultraviolet /ltrə|vaələt/ adjective
referring to or occurring in the invisible
part of the light spectrum beyond violet.
Abbreviation UV  ultraviolet radiation
the invisible part of the light spectrum
beyond violet
　
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