n. (pl.radii ) 1.半径；半径范围。 2.【解剖学】桡骨。 3.(车轮的)辐；【物理学】辐射线；【无线电】径向射线；辐射物；(六分仪等的)针；【纺织；印染】杼。 4.【植物；植物学】射出花。 短语和例子 within a radius of three miles 在周围三英里以内。 the flying radius 飞行半径；(加一次油的)飞行距离。 a radius of action 【军事】行动[活动]半径[所及范围]；航程；续航距离；续航力。 radius of convergence 【数学】收剑半径。 radius of curvature 【数学】曲率半径。
support consisting of a radial member of a wheel joining the hub to the rim 同义词：spoke, wheel spoke,
the length of a line segment between the center and circumference of a circle or sphere 同义词：r,
the outer and slightly shorter of the two bones of the human forearm
a circular region whose area is indicated by the length of its radius; "they located it within a radius of 2 miles"
a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
Remote Authentication Dial In User Service (RADIUS) is a networking protocol that provides centralized Authentication, Authorization, and Accounting (AAA) management for computers to connect and use a network service. RADIUS was developed by Livingston Enterprises, Inc.
例句与用法
1.
The radius expands markedly at its lower end . 桡骨下端明显扩张。
2.
The saddles must have a generous radius . 马鞍必须有足够的半径。
3.
The radius represents the advancement index . 辐枝代表进化指数。
4.
One solar radius equals 696, 000 kilometers . 一个太阳半径等于696，000公里。
5.
The beam bends to a circular profile of radius r . 梁弯曲成半径为R的园形形状。
6.
The radius vector of each solid is always a positive length . 每个立体的矢径总是正值长度。
7.
There is a velocity difference across the radius of the pipe . 这条管道半径两端间存在一速度差。
8.
This curve can be plotted well against particle radius . 这一曲线可以很好地用粒子的半径来描绘。
9.
Information on nuclear radius comes from a variety of sources . 关于原子核半径的知识有各种来源。
10.
The free energy increases monotonically with increasing radius . 自由能随半径的增大而单调地增加。
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