曝光臺(tái) 注意防騙
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three months’ notice. the student
pilot is grounded until further notice
the student pilot cannot fly again until
told by those in authority that he or she
can continue verb to observe While
noticeable 158
doing the pre-flight checks, Captain
Smith noticed that there was a leak of
hydraulic fluid from one of the brake
cylinders.
noticeable noticeable /nəυtsəb(ə)l/ adjective
catching the attention, easily noticed a
noticeable increase an increase which
is important enough to be observed
There was a noticeable improvement in
the trainee’s recent exam results.
notice board notice board /nəυts bɔd/ noun a
usually wooden board in a corridor or
classroom, etc., where information on
paper can be displayed
notification notification / nəυtf|keʃ(ə)n/
noun the act of informing somebody
about something Notification of the
new procedures will follow in a few
days. She received notification that
she had been accepted for the job.
notify notify /nəυtfa/ verb to inform Students
were notified of their exam results
by post. The authorities must be notified
of all in-flight incidents.
nozzle nozzle /nɒz(ə)l/ noun a projecting
part with an opening at the end of a
pipe, for regulating and directing a flow
of fluid The nozzle of a portable fire
extinguisher should be pointed at the
base of the fire.
nucleus nucleus /njukliəs/ noun the central
part around which other parts are
grouped An atom consists of a nucleus
with orbiting electrons. Condensation
occurs on very small particles suspended
in the air which are known as
condensation nuclei. (NOTE: The plural
form is nuclei.)
null null /n l/ noun an instrument reading
of zero the null position the zero
position Nulls are used for direction
sensing because they are better defined
than the maxima.
numerical numerical /nju|merk(ə)l/ adjective
referring to numbers or digits
numerical value numerical value /nju| merk(ə)l
vlju/ noun a number
numerous numerous /njum(ə)rəs/ adjective
very many, a lot Large transport aircraft
have numerous clearly-marked
exits to facilitate rapid evacuation of
passengers. Numerous refinements to
the simple actuator will be found in use.
nut nut /n t/ noun a metal ring which
screws on a bolt to hold it tight Turn
the nut anticlockwise to loosen it.
O
OAT OAT abbreviation 1. operational air
traffic 2. outside air temperature
obey obey /ə|be/ verb 1. to carry out or
comply with a command Pilots must
obey landing instructions. 2. to follow a
physical law Winds obey Buys Ballot’s
Law.
OBI OBI abbreviation omni-bearing indicator
object object /ɒbd"ekt/ noun 1. something
that you can touch and see and that has
a particular form and dimensions Any
given object will collect more ice when
travelling at high speed than at low
speed. 2. intention or aim The object
of the briefing is to inform all aircrew of
the new procedures. verb /əb|d"ekt/
to raise or voice opposition Staff
objected to the introduction of longer
working hours.
oblong oblong /ɒblɒŋ/ adjective rectangular
an oblong piece of aluminium noun
a rectangle
OBS OBS abbreviation omni-bearing selector
obscure obscure /əb|skjυə/ adjective not
clearly understood the explanation
was obscure the explanation was difficult
to understand because it wasn’t
clear verb to make difficult to see
Deposits of ice crystals on the windscreen
will obscure vision.
obscured obscured /əb|skjυəd/ adjective
sky obscured a meteorological term to
mean that fog or mist prevents sight of
the sky
observation observation / ɒbzə|veʃ(ə)n/ noun
careful watching The type of cloud is
established by observation and comparison
with cloud photographs.
observe observe /əb|z%v/ verb to watch carefully
Local wave action can be
observed from a height of 200 feet.
Wing deflection can be observed from
the passenger cabin.
observer observer /əb|z%və/ noun a person
working in a meteorological station
who assesses weather conditions by visual
means Meteorological visibility is
the greatest horizontal distance at
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Dictionary of Aviation下(24)
