radii

听听怎么读

英 ['reɪdɪaɪ]

美 [ˈrediˌaɪ]

是什么意思

半径；半径（距离）( radius的名词复数 )；用半径度量的圆形面积；半径范围桡骨；

英英释义

radius[ 'reidiai ]

n.
- the length of a line segment between the center and circumference of a circle or sphere
  同义词：r
- a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
- a circular region whose area is indicated by the length of its radius
  "they located it within a radius of 2 miles"
- the outer and slightly shorter of the two bones of the human forearm
- support consisting of a radial member of a wheel joining the hub to the rim
  同义词：spokewheel spoke

学习怎么用

词组短语

curvature radius曲率半径

radius compensation半径补偿；径差补偿

bending radius弯曲半径；转弯半径

radius of curvature曲率半径

curve radius曲率半径，弯曲半径

turning radius转弯半径，回转半径；旋转半径

spectral radius谱半径

throat radius n. 喉道半径

minimum radius最小半径

corner radius圆角半径；刀尖圆弧半径；拐角半径

edge radius棱角半径

outer radius n. 外半径

bend radius弯曲半径

effective radius有效半径

rolling radius滚动半径

radius vector[数]矢径；[天]向径

radius of gyration回转半径

fillet radius圆角半径；内圆角半径；齿根圆角半径；过渡圆半径

nose radius球头半径；刀尖半径

radius ratio半径比

更多收起词组短语

双语例句

用作名词(n.)

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。
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。

权威例句

Atomic Radii in Crystals
van der Waals volumes. radii
Atomic Radii and Interatomic Distances in Metals
Approximations to the radii of Roche lobes
Optimum transmission radii for packet radio networks or why six is a magic number
Planetary Radii across Five Orders of Magnitude in Mass and Stellar Insolation: Application to Transits
Hydrodynamic Radii of Native and Denatured Proteins Measured by Pulse Field Gradient NMR Techniques†
Phenomenological Theory of Ion Solvation. Effective Radii of Hydrated Ions
Measurement of interaction cross sections and nuclear radii of unstable p-shell nuclei
The GB/SA Continuum Model for Solvation. A Fast Analytical Method for the Calculation of Approximate Born Radii

r开头的单词