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

and also traces of hydrogen, helium,
krypton, neon, ozone and xenon.
atmospheric atmospheric /tməs|ferk/ adjective
referring to the atmosphere

atmospheric density
atmospheric attenuation atmospheric attenuation
/tməsferk ə|tenju|eiʃ(ə)n/ noun
the weakening of a radio signal as it
passes through the air
atmospheric pollution atmospheric pollution
/tməsferk pə|luʃ(ə)n/ noun same
as air pollution
Solid particles in the
air include dust, sand, volcanic ash and
atmospheric pollution.
atmospheric pressure atmospheric pressure
/tməsferk preʃə/ noun normal air
pressure on the surface of the earth
atmospheric refraction atmospheric refraction
/tməsferk r|frkʃən/ noun
change in direction of waves due to variations
in temperature, pressure and
humidity, particularly at lower altitudes
atom atom /təm/ noun the smallest
amount of a substance which can take
part in a chemical reaction
An atom
consists of a nucleus and electrons.
atomic atomic /ə|tɒmk/ adjective referring
to atoms  atomic structure of matter
the structure of materials and substances
at their smallest level
atomisation atomisation /təma|zeʃn/, atomization
/təma|zeʃ(ə)n/ noun the
reduction of liquids to a fine spray
The
fuel achieves fine atomisation under
pressure.
atomise atomise /təmaz/, atomize verb to
reduce liquids to a fine spray
The fuel
must be atomised or vaporised to combine
with the air to permit combustion.
ATPL ATPL abbreviation Airline Transport
Pilot’s Licence
ATS ATS abbreviation air traffic services
ATSU ATSU abbreviation air traffic service
unit
attach attach /ə|ttʃ/ verb to join or fix
something to something
The ice
detector is attached to the fuselage.
attachment attachment /ə|ttʃmənt/ noun 1.
the act of joining or fixing something to
something
The attachment of winglets
improved the handling characteristics
of the aeroplane. 2. an accessory which
can be attached
The video camera is
sold with a number of attachments
including a carrying strap and a battery
pack.
attachment point attachment point /ə|ttʃmənt
pɔnt/ noun a place on the airframe
where something such as an engine is
attached by means of bolts
Additional
strength is required for the power plant
attachment points.
attain attain /ə|ten/ verb to reach, to achieve
something, often with difficulty
In
order to attain a fuller understanding of
gas turbines, it is essential to know
something about basic gas laws.
attempt attempt /ə|tempt/ noun a try
Any
attempt to increase range by applying
more power is of little or no benefit. 
verb to try
He attempted to land
despite the poor visibility but then
decided to divert to another airfield
where he landed safely.
attendant attendant /ə|tendənt/ adjective
accompanying something else
Fuel
spillage and attendant fire risk must be
minimised.  attendant problems associated
problems  noun a person
employed to help members of the public
attention attention /ə|tenʃən/ noun the ability
or power to concentrate on something

The crew’s attention is alerted by an
automatic display.  attention please
listen carefully to what will be said 
pay attention listen to the speaker and
concentrate on what is being said
attenuate attenuate /ə|tenjuet/ verb to lose
power or strength
A wave becomes
attenuated or loses strength as range
increases.
attenuation 26
attenuation attenuation /ə|tenju|eʃ(ə)n/ noun
loss of strength
Atmospheric attenuation
is negligible until the upper end of
the UHF band when it increases rapidly
to limit the highest usable frequency to
about 10 GHz.
attenuative attenuative /ə|tenjuətv/ adjective
becoming weaker
Rain has an attenuative
effect.
attitude attitude /ttjud/ noun 1. the position
of the aircraft in the air in relation
to the horizon
Angle of attack will
vary with changes in engine speed and
aircraft attitude.  nose down attitude
the attitude of the aircraft when the nose
is at a lower level than the tail 2. a way
of thinking and feeling about or of
　
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