音标:['reidiai] ;
pl. 半径
[医] 半径, 辐射线(解)
n the length of a line segment between the center and circumference of a circle or sphere
n a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
n a circular region whose area is indicated by the length of its radius
n the outer and slightly shorter of the two bones of the human forearm
n support consisting of a radial member of a wheel joining the hub to the rim

radii的用法和样例:

例句

用作名词(n.)
  1. A plane figure bounded by two radii and the included arc of a circle.由两个半径和两个半径中间的弧所形成的一个平面形状。
  2. It is now necessary to introduce a sign convention for radii of curvature.现在必须介绍曲率半径的正负号规则。

词汇搭配

  • radius半径范围
  • collum radii桡骨颈
  • optimum bend radii最佳河弯半径...
  • ratio of ionic radii离子半径比
  • capitulum radii桡骨小头

It sits a million miles away from the Earth 它位于距地球一百万里处的 at the Lagrangian point 拉格朗日点 where the gravitational pull from the Earth and the sun is equal. 此处地球和太阳的引力相等 Fixed in space it has an u

发表于:2018-12-07 / 阅读(479) / 评论(0) 分类 太阳科普

-Im Chris Kaufman and I here with Justin Kasper, who works at Smithsonian, hes an astrophysicist at the Smithsonian. And he's won a project thats gonna launch a probe at the sun, specifically the Solar Wind Electrons Alphas and Protons investigation,

发表于:2019-01-07 / 阅读(373) / 评论(0) 分类 万花筒2013年
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3-NITROBENZALDEHYDE
adi-r
Aliskerovo
ANLYS
antigypsyism
ariolate
automatic request for repetition
bahiana
Bartholin's canal
beet
Bernese Alps
bit slice access
Calliope
cartwheeler
cloud-mist
cold-gas plenum
colored gentleman
concrete basin
Cornularia
crankshaft journal
cti (china textile institute)
cylindrical polishing
demarkation
diaristic
dichroine A
disclose illegal activities
doobries
double density
economy ought to be restructured in a package deal
ephedras
eradiating
evans, mount
extrapyramidal motor fasciculi
fanny batter
Fitzgerald, Francis Scott (Key)
full-transistor ignition system
g.e.
geography of labo(u)r resources
glaucas
grady
high-velocity stream
Hofmannsthal, Hugo von
hopper scale
huer
idealization method
impervium
incised wound
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input path
internet server extensions
interparticle friction
jacques lucien monods
joint washer
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Kochetovka
Korthalsella japonica
leave sth about
Loss Leader Strategy
lucettas
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open-circuit input impedance
Phormia regina
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power-houses
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prior appropriation law
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Reeth
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rolling needle
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smallest subspace
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spinfunction
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tapered center
tetra-pak
the southeast
through the ages
turbine-pump station
underlined character
USSG
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vasil
ventilator outlet pipe air cleaner
warm runner plate
Westleton
worn-out fixed assets