国产成人自拍av_国产精品18久久久久久久_国产精品久久久久无码av_青青草原综合久久大伊人精品_蜜桃视频一区二区三区_国产黄色小视频

radius

英 ['re?d??s] 美['red??s]
  • n. 半径,半径范围;[解剖] 桡骨;辐射光线;有效航程
  • n. (Radius)人名;(意、印尼)拉迪乌斯;(英)雷迪厄斯;(法)拉迪于斯

CET6TEM4CET4IELTSGRE考研低频词常用词汇

词态变化


复数:?radii;

中文词源


radius 半径

rad-,半径,根,-us,阳性格。

英文词源


radius (n.)
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).

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

主站蜘蛛池模板: 中文字幕一区二区三天 | 中文字幕一精品亚洲无线一区 | 亚洲国产精品视频一区二区 | 亚洲综合套图 | 国产一区二区三区高清视频 | 91国在线高清视频 | 91亚洲一区 | 九九热九九 | 久久av片免费一区二区三区 | 丰满少妇大力进入av亚洲葵司 | 91亚洲国产成人久久精品麻豆 | 国产成人午夜精品影院游乐网 | 全部免费毛片在线播放 | 亚洲精品综合在线 | 91高清观看| 一本一道久久久a久久久精品蜜臀 | 免费视频福利 | 国产成人精品一区二区在线 | 九一电影网 | 91黄视频 | 久久久久久国产精品久久 | 天堂一区二区三区在线 | 国产欧美一二三区 | 久久激情综合网 | 国产精品精品久久久久久 | 91视频免费在线 | www夜夜操com| 91人人射 | 91高清版 | 久久久久国产欧美 | 99精品久久久久久久婷婷 | 亚一区 | 亚洲国产aⅴ精品一区二区 麻豆91精品91久久久 | 久久久久久久久久久99 | 精品在线观看视频 | 91成人短视频下载 | 亚洲国产精品视频一区二区 | 91伦理在线观看 | 在线电影91 | 在线男人天堂网 | 久久久久国产欧美 |