1590s, "cross-shaft," from Latin radius "staff, stake, rod; spoke of a wheel; ray of light, beam of light; radius of a circle," of unknown origin. Perhaps related to radix "root," but Tucker suggests connection to Sanskrit vardhate "rises, makes grow," via root *neredh- "rise, out, extend forth;" or else Greek ardis "sharp point."
The geometric sense first recorded 1610s. Plural is radii. Meaning "circular area of defined distance around some place" is attested from 1953. Meaning "shorter bone of the forearm" is from 1610s in English (the Latin word had been used thus by the Romans).
radius 英文释义
1. the length of a line segment between the center and circumference of a circle or sphere
2. a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
3. a circular region whose area is indicated by the length of its radius;
"they located it within a radius of 2 miles"
4. the outer and slightly shorter of the two bones of the human forearm
5. support consisting of a radial member of a wheel joining the hub to the rim
radius 双语例句
1. Nigel has searched for work in a ten-mile radius around his home.
奈杰尔一直在他家周围10英里的范围内找工作。
来自柯林斯例句
2. They deliver to within a 5-mile radius of the store.
他们在距离商场5英里的范围内送货上门。
来自《权威词典》
3. He has visited every shop within a radius of two miles.
周围两英里以内的店铺他都去过.
来自《简明英汉词典》
4. We are measuring the radius of the circle.
我们正在测量圆的半径.
来自《简明英汉词典》
5. A special load balancing server designed for solving this problem can manage multi RADIUS servers.
设计了一个专门的负载平衡服务器,调度多个RADIUS服务器,使得各个服务器的负载达到均衡.
来自互联网
radius 实用场景例句
They deliver to within a 5-mile radius of the store.
他们在距离商场5英里的范围内送货上门。
牛津词典
Nigel has searched for work in a ten-mile radius around his home.
奈杰尔一直在他家周围10英里的范围内找工作。
柯林斯高阶英语词典
He indicated a semicircle with a radius of about thirty miles.
他标示出了一个半径大约为30英里的半圆形。
柯林斯高阶英语词典
British trucks have a small camo detection radius.
英军卡车获得小范围的反伪装能力.
期刊摘选
At present, full radius hob is used extensively for heavy transmission gear production.
当前, 齿顶整圆弧滚刀广泛应用于重型汽车变速器齿轮的生产中.
期刊摘选
For a given radius no one angle is correct for all speeds.
对于给定的曲率半径,没有一个适合所有速度的角度.
辞典例句
Article 6 No development activities shall be allowed within the radius of the fountainhead.
第6条温泉露头及其一定范围内,不得为开发行为.
期刊摘选
Can only use within radius of; Wireless Tower or Internet Center.
只能在网络中心和无线塔周围使用.
期刊摘选
When curvature radius is larger the results for rectangular and cylindrical coordinate are the same.
当曲面曲率半径较大时,用柱坐标与直角坐标计算差别很小.
期刊摘选
The calculation of radius and restrictive conditions of belt conveyor with horizontal curves is introduced.
介绍了平面转弯带式输送机转弯半径的限制条件及转弯半径的计算方法.
期刊摘选
Adjust the radius of curvature as necessary by manipulating the thumb knob.
如果需要,可通过控制指控推扭调节曲率半径.
期刊摘选
Using small radius electronic gange new technology, we successfully operate interference test in Zhao 41 region.
对晋县凹陷41断块油田采用小直径电子压力计试井新技术, 成功地进行了干扰试井.
期刊摘选
We are measuring the radius of the circle.
我们正在测量圆的半径.
《简明英汉词典》
For binary target, it is shown that the preferential sputtering is independent of atomic radius.
在双元靶严格解的基础上, 证明了泽优溅射与原子的半径大小无关.
期刊摘选
Dell Services programmes are subject to the service radius restrictions within the country.
戴尔的服务计划受所在国服务范围的限制.
期刊摘选
The percentage increase of radius of a circle is 30 %, find the percentage increase its area.
若一圆的半径增加了30%, 则此圆的面积增加了多少巴仙?
期刊摘选
The given radius being 4 ft., find the circumference.
已知半径为四英尺, 求周长.
辞典例句
There was some reference value to similar parts with big thickness and litter bending radius.
对类似厚材料小半径卷圆零件的多工位级进模设计有一定的参考价值.
期刊摘选
Objective To observe the experimental study of Jiegu Qili Pian of fracture of radius in rats.
目的观察接骨七厘片用于大鼠桡骨骨折的实验研究.
期刊摘选
All of the impacts can be contained within a circle having a 100 meter radius.
所有的弹着点可以囊括在一个半径为100米的圆圈之内.
期刊摘选
Next, we'll select those cities in Florida within a 50 mile radius of our customers.
下一步, 我们会选择那些在佛罗里达州内的城市50英里半径的客户.
期刊摘选
Using the Rounded Rectangle Tool with a radius set to 15 px.
选择圆角矩形工具,半径设为15像素.
期刊摘选
He has visited every shop within a radius of two miles.
周围两英里以内的店铺他都去过.
《简明英汉词典》
The police searched all the fields and woods within a radius of two miles.
警察搜查了半径两英里范围内所有的田野和森林.
《现代英汉综合大词典》
Step edges that are parallel to the planet radius are coated symmetrically.
与行星径向平行的台阶边缘被对称淀积.
辞典例句
The incision depth is larger than the cladding thickness but smaller than the optical fiber radius.
