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from affecting a radio signal R/T
noise interference can be suppressed.
suppressed antenna suppressed antenna /sə| prest n|
tenə/ noun an antenna which is
mounted under the airframe skin
Static interference can be reduced by
installing suppressed antennas.
suppression suppression /sə|preʃ(ə)n/ noun 1.
the prevention of the development or
spreading of something a fire suppres-
225 susceptible
sion system 2. the prevention of electrical
interference of a radio signal
suppressor suppressor /sə|presə/ noun a device
used in an electrical or electronic system
to reduce unwanted currents, e.g. a
resistor or grid A suppressor improves
the quality of the signal.
surface surface /s%fs/ noun 1. an outer covering
of something, or the top part of
something the surface of the wing 2.
the Earth’s surface or ground
surface air temperature surface air temperature / s%fs
eə temprtʃə/ noun the temperature
recorded in the shade at a height just
above ground level
surface front surface front /s%fs fr nt/ noun a
weather front at the surface of the earth
The cirrus cloud can be 900 miles
ahead of the surface front with a rain
belt as wide as 200 miles.
surface heating surface heating /s%fs hitŋ/
noun the heating of the ground by the
sun
surface movement radar surface movement radar noun a
type of radar used at airports to monitor
aircraft traffic on the ground. Abbreviation
SMR
surface synoptic chart surface synoptic chart / s%fs s|
nɒptk tʃɑt/ noun a chart of a geographical
area with symbols, fronts and
isobars giving a representation of the
weather over the area at a particular
time
surface tension surface tension /s%fs tenʃ(ə)n/
noun the tension of the surface film of a
liquid
surface wind surface wind /s%fs wnd/ noun a
wind which blows across the land surface
surge surge /s%d"/ noun a sudden increase
in something such as electrical power
engine surge instability in the power
output of an engine verb to move with
force like a wave If combustion pressure
increases above compressor outlet
pressure, the airflow will reverse in
direction and surge forward through the
compressor.
surplus surplus /s%pləs/ adjective excess,
more than is needed Fuel penalties
can be incurred if fuel surplus to
requirements is carried.
surround surround /sə|raυnd/ noun something
which encloses or borders The design
of windows, hatches or door surrounds
is very critical. verb to encircle or to
enclose The Earth is surrounded by
the atmosphere.
surveillance surveillance /sə|veləns/ noun the
act of watching or monitoring
surveillance radar surveillance radar /sə|veləns
redɑ/ noun primary radar scanning,
often through 360°
survey survey noun /s%ve/ a detailed
examination An aerodrome meteorological
office maintains a continuous
survey of meteorological conditions
over the aerodromes for which it is designated
to prepare forecasts. verb /sə|
ve/ to determine the boundaries, area,
or elevations of land by means of measuring
angles and distances Take care
when using wooded areas to fix position
because the cutting down of trees may
have led to a change in shape since the
map was made.
survival survival /sə|vav(ə)l/ noun the fact of
remaining alive after an accident The
survival of passengers in the sea
depends on rapid location and rescue.
‘…survival training is a vital element of
all aircrew knowledge. Just because
modern aircraft are more reliable than
their predecessors, the need for such
training does not diminish’ [Civil
Aviation Training]
survival beacon survival beacon /sə|vav(ə)l
bikən/ noun a beacon which transmits
a signal which enables search aircraft to
locate survivors in the water VHF
and/or UHF survival beacons are carried
on all jet transports.
survivor survivor /sə|vavə/ noun a person
who continues to live after an accident
Whilst awaiting rescue on land or at
sea, survivors should avoid exposure
and conserve energy. The aircraft
crashed into the sea and there were no
survivors.
susceptible susceptible /sə|septb(ə)l/ adjective
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Dictionary of Aviation下(85)
