radius
英 ['re?d??s]
美['red??s]
- n. 半徑，半徑范圍；[解剖] 橈骨；輻射光線；有效航程
- n. (Radius)人名；(意、印尼)拉迪烏斯；(英)雷迪厄斯；(法)拉迪于斯
CET6TEM4CET4IELTSGRE考研低頻詞常用詞匯
詞態(tài)變化
復(fù)數(shù):?radii;
中文詞源
radius 半徑
rad-,半徑，根，-us,陽(yáng)性格。
英文詞源
- 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).
雙語(yǔ)例句
- 1. Nigel has searched for work in a ten-mile radius around his home.
- 奈杰爾一直在他家周?chē)?0英里的范圍內(nèi)找工作。
來(lái)自柯林斯例句
- 2. They deliver to within a 5-mile radius of the store.
- 他們?cè)诰嚯x商場(chǎng)5英里的范圍內(nèi)送貨上門(mén)。
來(lái)自《權(quán)威詞典》
- 3. He has visited every shop within a radius of two miles.
- 周?chē)鷥捎⒗镆詢(xún)?nèi)的店鋪他都去過(guò).
來(lái)自《簡(jiǎn)明英漢詞典》
- 4. We are measuring the radius of the circle.
- 我們正在測(cè)量圓的半徑.
來(lái)自《簡(jiǎn)明英漢詞典》
- 5. A special load balancing server designed for solving this problem can manage multi RADIUS servers.
- 設(shè)計(jì)了一個(gè)專(zhuān)門(mén)的負(fù)載平衡服務(wù)器,調(diào)度多個(gè)RADIUS服務(wù)器,使得各個(gè)服務(wù)器的負(fù)載達(dá)到均衡.
來(lái)自互聯(lián)網(wǎng)