音标：[.reidiәuæk'tiviti] ；

n. 放射性
[化] 放射性

n the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay

词型变化：名词复数形式 : radioactivities
考试类型：[四级/六级]

词性分布：

名词100%

radioactivity的用法和样例：

例句

用作名词(n.)

Radioactivity is a special quality of radium.放射性是镭的一种特性。
The soil contains 30 times the acceptable level of radioactivity.这片土壤受到了高于标准30 倍的辐射。

词汇搭配

radioactive放射性的
radioactivity strength放射性强度
dustborne radioactivity放射性尘埃
radioactivity logging放射性测井
artificial radioactivity感生放射性,人工放射...
natural radioactivity天然放射性
contained radioactivity控制放射性
airborne radioactivity大气中的放射性, 气...
specific radioactivity放射性比度,比放射性...
radioactivity decay放射性衰变
contaminating radioactivity污染的放射性...
radioactivity protection放射性防护
radioactivity detection放射性探测
radioactivity absorber放射性吸收剂...
induced radioactivity感应放射性,感生放射...
radioactivity prospecting放射性勘探,电探...
alpha radioactivity放射能
radioactivity meter放射性测量计...
radioactivity determination放射法测定
atmospheric radioactivity大气放射性

【近义词】

radiation辐射
particle emission粒子发射
energy精力
fallout原子尘的降下...

英语听力—环球英语 1456 Life in the Chernobyl Zone

Voice 1 Welcome to Spotlight. Im Ryan Geertsma. Voice 2 And Im Anne Muir. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 3 You have got to go in spring. I

发表于:2018-12-19 / 阅读(285) / 评论(0)

环球英语 Spotlight

人教高中英语高二下UNIT12-3

MR CAVORS FLYING MACHINE When I first met Mr Cavor, he was about to finish building the machine in which he planned to travel to the moon. As it had neither wings nor an engine, I was amazed and asked him how his machine could fly. The secret lay in

发表于:2018-12-29 / 阅读(313) / 评论(0)

人教高中英语高二

高中英语第二册课本朗读12-work

Mr Cavors Flying Machine When I first met Mr Cavor, he was about to finish building the machine in which he planned to travel to the moon．As it had neither wings nor an engine，I was amazed and asked him how his machine could fly．The secret lay

发表于:2019-01-09 / 阅读(422) / 评论(0)

高中英语听力人教版第二册

万物简史第151期:基本物质(23)

In the spring of 1904, Rutherford traveled to London to give a lecture at the Royal Institutionthe august organization founded by Count von Rumford only 105 years before, though that powdery and periwigged age now seemed a distant eon compared with t

发表于:2019-01-29 / 阅读(204) / 评论(0)

万物简史

Nuclear-Contaminated Beef Scare Spreads in Japan

A scare in Japan over beef contaminated with radioactivity spread on Sunday, with more areas of the country reporting tainted meat. Japanese media say meat from 132 cattle that ate straw contaminated with extremely high levels of radioactive cesium h

发表于:2019-02-18 / 阅读(200) / 评论(0)

英语新闻

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

block-oriented computer

bodianus oxycephalus

Brnsted base