radnor
拉德诺郡[英国威尔士原郡名]
radom:
n. 屏蔽罩(天线罩,天线屏蔽器)
radome
(雷达)天线屏蔽器
英英解释:名词radome:
1. a housing for a radar antenna; transparent to radio waves
同义词：radar dome
radon
n. 氡
词形变化:简写符号:Rn
例句与用法:1.A radioactive, inert, gaseous isotope of radon, with a half-life of3.92 seconds.锕射气氡的一种放射性的，惰性的和气态的同位素，其半衰期为3。92秒
2.Any of several radioactive gases that are isotopes of radon and are products of radioactive decay.射气几种氡的同位素的放射性气体，是放射性物质衰变的产物
英英解释:名词radon:
1. a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health
同义词：Rn, atomic number 86
radula
n. 齿舌
radular
a. (软体动物的)齿舌的
radwaste
n. 放射性废物
rae
n. 英国皇家航空研究中心
raf:
n. 英国皇家空军
英英解释:名词raf:
1. the airforce of Great Britain
同义词：Royal Air Force
2. a Marxist and Maoist terrorist organization in Germany; a network of underground guerillas who committed acts of violence in the service of the class struggle; a successor to the Baader-Meinhof Gang; became one of Europe's most feared terrorist groups; disbanded in 1998
同义词：Red Army Faction
rafale
[军] (“阵风”) 21世纪法国海空军的主力战斗机
n. [军](大炮的)迅猛射击, 隆隆鼓声
raff
n. 废料(大量)
rafferty
a. 完全不讲章法的,混乱的, 无组织的
raffia
n. 拉菲亚树,其叶的纤维
英英解释:名词raffia:
1. leaf fibers of the raffia palm tree; used to make baskets and mats etc.
同义词：raphia
2. fiber of a raffia palm used as light cordage and in making hats and baskets
3. feather palm of tropical Africa and Madagascar and Central and South America widely grown for commercial purposes
同义词：genus Raffia, Raphia, genus Raphia
raffinate
n. 润滑油等熔剂精制制提炼的提余液
raffinose
n. [生化]蜜三糖,棉子糖
英英解释:名词raffinose:
1. a trisaccharide that occurs in sugar beets and cotton seeds and certain cereals
raffish
a. 名誉不好的,无赖的,卑鄙的
词形变化:副词:raffishly 名词:raffishness
例句与用法:1.He was drinking cheap champagne with a raffish air.他喝著廉价的香槟酒, 样子十分放荡.
英英解释:形容词raffish:
1. marked by up-to-dateness in dress and manners
同义词：dapper, dashing, jaunty, natty, rakish, spiffy, snappy, spruce
2. marked by a carefree unconventionality or disreputableness- Crary Moore
同义词：devil-may-care, rakish
raffle
n. 废物(绳索什物)
vt 抽彩
词形变化:名词:raffler
例句与用法:1.The draw for the raffle takes place on Saturday.抽彩仪式星期六举行.
2.My luck's in I won a new car in a raffle.我的运气来了－－在有奖抽彩中我得了一辆新汽车。
3.First prize in the raffle is a holiday for two in Paris.抽奖销售的头奖是两个人到巴黎度假旅游。
4.After losing my job it was cold comfort to be told I'd won the office raffle.我失去工作以後，听说我抽中了公司的奖券，有同画饼。
5.Buy lots of raffle tickets and multiply your chances of success.多买彩票, 增加你中奖的机会.
英英解释:名词raffle:
1. a lottery in which the prizes are goods rather than money
动词raffle:
1. dispose of in a lottery
同义词：raffle off
rafflesia
[植]大花草属(产于马来西亚)
raft
n. 筏,救生艇,大量
v. 乘筏,制成筏
词形变化:动词过去式:rafted 过去分词:rafted 现在分词:rafting 第三人称单数:rafts
例句与用法:1.We found the shipwrecked sailors on a raft.我们在一个木筏子上找到了失事船只的船员。
2.She got a raft of presents.她收到了许多礼物.
3.Many people get away from the wrecked ship on a raft.许多人乘救生艇离开遇难的船。
4.The raft was floating gently down the river.筏子顺河水缓缓漂流.
英英解释:名词raft:
1. a flat float (usually made of logs or planks) that can be used for transport or as a platform for swimmers
2. (often followed by `of') a large number or amount or extent
同义词：batch, deal, flock, good deal, great deal, hatful, heap, lot, mass, mess, mickle, mint, muckle, peck, pile, plenty, pot, quite a little, sight, slew, spate, stack, tidy sum, wad, whole lot, whole slew
动词raft:
1. transport on a raft
2. travel by raft in water
3. make into a raft
rafter
n. 椽,椽架屋顶
v. 装椽
词形变化:形容词:raftered
例句与用法:1.The big rafter is visible in this room.这间屋子粗大的椽子可以看得见。
英英解释:名词rafter:
1. one of several parallel sloping beams that support a roof
同义词：balk, baulk
2. someone who travels by raft
同义词：raftsman, raftman
动词rafter:
1. provide (a ceiling) with rafters |
