音标:['reidɒn] ; 柯林斯词典等级:1 级;
n. 氡
[化] 氡Rn
n. a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health
词型变化:名词复数形式 : radons
词性分布:
名词100%

radon的用法和样例:

例句

用作名词(n.)
  1. Radon is the daughter of radium.氡是镭的子体。
  2. Where does the indoor radon come from?室内氡气是从哪里而来?

词汇搭配

  • radon breath analysis呼吸中的氡含量分析...
  • radon gas氡气
【近义词】
  • Rn[化]元素氡的符号(=r...

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学英语单词
abrasion pulsator
absolute configuration
air way slits in rotor
alkynal
alumopharmacrosiderite
amazings
ananov
ansonia
anterodistal
anti-friction
Attlee, Clement (Richard)
aulae
autotransductor
black tree fern
blade mixing
calabur trees
capsella bursapastoris moench. forma
carnivalesque reversal
case simulator
central mountain
chimney sweeper
colour double-picture television broadcast system
common resources
compel
continuous grade of release
crown of the causeway
cultural attach
data converters
deny admittance to
depreciation on franchises
Doliolina
egg-producing
ethyl phthalate
eurycomanone
F ratio
faithful representation
floating point basis
galvanofaradization
general discharging instructions
glycosaminidases
Gyroceras
hdo
homoeostasis
HRDS
hypostomal sclerite
illueca
inter-house
leader label
liquefaction of brain tissue
loosely-woven
malafiges
memoscope programme
monitor resolution
monitoring parameters
Montrichard
myrica oil
nrhx (non-regenerative heat exchanger)
office furniture account
organic reef facies
outward-flow turbine
oxide isolation
oxygen inhale
peculiar evil
pecuniary economies of scale
phenylsilane
quartzitic
raclettes
radius of the throat
range cubes
reeling hook
regaled with
revealing agent
rezzori
Rifton
Schweitzer's reagent
screw base lamp
screw-slotting machine
shallow oval can
silicochloroform
simulation type
sine-wave modulator
slave driver
slot-pitch angle
sludge accumulation
sphingolipid(e)
stay on the ball
sting winkle
submaxillary lymph glands (or mandibular lymph glands)
sudser
take one's full swing
take oneself off
tayloristic
Third International
timbrally
to propose
toughened water gauge glass
trade leads
triacetone
trimethylenedinitrilo-tetraacetic acid
trypeta luteonota
Verticillium Nees
woody