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单词 radius
释义
radius
noun[C]
uk
/ˈreɪ.di.əs/us
/ˈreɪ.di.əs/
pluralradii

radiusnoun[C](DISTANCE)

(thelengthof) astraightlinejoiningthecentreof acircletoitsedgeor thecentreof aspheretoitssurface:
（圆或球体的）半径，半径长度
The radius of thiswheelis 30 cm..这个轮子的半径是30厘米。
Thiswheelhasa radiusof30 cm.这个轮子的半径是30厘米。
picture of radius
Encyclopaedia Britannica/Universal Images Group/GettyImages
adistancefrom acentralpoint:
半径距离；半径范围；周围
Thestation,shoppingcentreandschoolliewithina one-mile radius of thehouse.车站、购物中心和学校都在距这所房子1英里的范围之内。
SMART Vocabulary: related words and phrases
Geometry: parts of geometrical shapes
  • -sided
  • angle
  • axis
  • bulky
  • chord
  • conic
  • corresponding sides
  • frustum
  • hemisphere
  • hypotenuse
  • perimeter
  • plane
  • quadrant
  • section
  • symmetrical
  • symmetrically
  • symmetry
  • tan
  • ultra-dense
  • vertex
See more results »

You can also find related words, phrases, and synonyms in the topics:

Measurements in general

radiusnoun[C](BONE)

anatomyspecialized
thethickerof the twobonesin thelowerarm
桡骨
picture of radius
solar22/iStock/Getty Images Plus/GettyImages
SMART Vocabulary: related words and phrases
The arm
  • acromial
  • acromioclavicular
  • acromion
  • alar
  • anconeus
  • appendage
  • cubital
  • forearm
  • glenohumeral
  • glenoid
  • infraglenoid
  • infraspinatous
  • supraclavicular
  • supraglenoid
  • suprascapular
  • supraspinatous
  • supraspinatus
  • triceps
  • ulna
  • underarm
See more results »

You can also find related words, phrases, and synonyms in the topics:

Bone structures
(Definition ofradiusfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

radius| American Dictionary

radius
noun[C]
us
/ˈreɪ·di·əs/
pluralradiius/ˈreɪ·diˌɑɪ/
geometry
(thelengthof) astraightlinefrom thecenterof acircletoitsedge:
Thesupermarket,shoppingmall, andschoolare all within a one-mile radius of thehouse(= are all less than amileaway from it).
(Definition ofradiusfrom theCambridge Academic Content Dictionary© Cambridge University Press)

Examplesofradius

radius
One can see that for the smallest focal spot radii, the electron density distributions have a strong depression on the axis.
From theCambridge English Corpus
We shall consider the diagonal case, where all radii are the same.
From theCambridge English Corpus
The first we will consider is how well such parameters can reproduce inter-atomic distances, and effective ionic radii.
From theCambridge English Corpus
At small plasma radii, the atoms were always found to be concentrated at the position of the original beam.
From theCambridge English Corpus
Not the periphery, not the community comes first, but the radii, the common relation to the center [sic].
From theCambridge English Corpus
Fiftyfive nodes are used in the 5-direction because the domain extends 25 radii from the particle centre.
From theCambridge English Corpus
Owing to the slight difference in bubble radii, this component is driven below resonance for the smaller bubble and above resonance for the bigger one.
From theCambridge English Corpus
We also developed an algorithm to obtain some concise explicit expressions for isotropic acceleration and velocity radii without using pseudo-inverse.
From theCambridge English Corpus
Underlying that was an associated system of smaller news-agency centres with radii extending to most of the towns, villages and major houses in the area.
From theCambridge English Corpus
They have developed an algorithm to obtain some concise explicit expressions for isotropic acceleration and velocity radii, without using the pseudoinverse method.
From theCambridge English Corpus
The length constant was derived from the photoresponses that were elicited by concentric light stimuli of fixed intensity and different radii.
From theCambridge English Corpus
The contact fronts in the exploding spheres show a marked difference from their theoretical behaviour by expanding to larger radii and exhibiting only very slight oscillation.
From theCambridge English Corpus
Here r1 and r2 are the radii of the inner and outer cylinders, respectively, h is the height of the cylinders and is the rotation rate of the inner cylinder.
From theCambridge English Corpus
A summary of the area summation receptive field radii for all the different simulated conditions.
From theCambridge English Corpus
Then, one can assume an equal pitch radii of wheels in order to ensure the maximum arc of contact between wire, sprocket chain, belt or timing belt and both wheels.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.

Collocationswithradius

radius

These are words often used in combination withradius.

Click on a collocation to see more examples of it.

average radius
Crown area was calculated using the estimated average radius of the tree canopy.
From theCambridge English Corpus
distal radius
Increased bone fragility leads to fractures at sites in thedistalradius, hip and vertebral column.
From theCambridge English Corpus
outer radius
I do not intend to revive the wartime provision for an outer radius.
From the
Hansard archive
Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/radius##
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更新时间：2025/2/5 18:56:57