β放射性

beta activity的用法和样例:

例句

  1. Pu is an important material in the weapon and energy material, but it is difficult for its stockpile for its radiation and activity.钚作为武器和能源材料已经获得了极为重要的应用,但由于其特殊的放射性衰变和活泼的化学性质,一直难于发现高效长久的存储方式,因此其表面物理和化学长期以来都是研究的热点之一。

午市 afternoon session 反向可转换产品 reverse convertibles 反收购 reverse takeover 反收购文件 defence document 反通货膨胀 disinflation 反驳交易 rejected sales 反弹 rally 反馈测试模式 betatest mode 太平洋区资本市

发表于:2018-11-29 / 阅读(159) / 评论(0) 分类 金融英语

[00:14.07]The World Trade Organization(WTO) and China [00:18.34]As China has been admitted [00:22.06]to the World Trade Organization (WTO), [00:24.90]it is very apt at this time [00:27.42]to compile some important data [00:29.60]about this internatio

发表于:2018-12-01 / 阅读(327) / 评论(0) 分类 最新15篇文章贯通英语六级词汇

Spotting Trends Heidi: You look very relaxed reading magazines in the middle of the workday. Tim: Its my job. Im tasked with spotting new trends. Heidi: And you do that by reading magazines with your feet up? Tim: Why not? I also frequent places wher

发表于:2018-12-03 / 阅读(94) / 评论(0) 分类 2014年ESL之商务英语

[00:09.70]I'd like to welcome Tyler Prince, 让我们欢迎泰勒普林斯 [00:12.06]president of Beta Omega Rho fraternity. Beta Omega Rho兄弟会的会长 [00:19.10]Hey, everyone. 大家好 [00:26.30]I've asked Tyler to come today to talk about a

发表于:2018-12-07 / 阅读(123) / 评论(0) 分类 听电影学英语-大学新生

Thank you very much 非常感谢 First of all, thank you 首先 谢谢你们 I thank you and Dr. Paula WhetselRibeau 谢谢你们 还有宝拉?威索尔里博博士 Thank you for meeting me outside with your daughter 谢谢你带着你女儿在外面接

发表于:2018-12-30 / 阅读(78) / 评论(0) 分类 公众人物毕业演讲

One of the more infuriating things about the Internet is when a website closes down. You might follow a favorite writers blog, save links to helpful articles, and share interesting posts on social media. But then one day, you return to the website to

发表于:2019-01-02 / 阅读(119) / 评论(0) 分类 2017年VOA慢速英语(二)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Its like the molecular version of the Joker and the Riddler teaming up against Batman. Scientists at Yale University have discovered that amyloid beta, a

发表于:2019-01-08 / 阅读(104) / 评论(0) 分类 Scientific American(三)月

New research suggests a relatively simple blood test might make it possible to predict who is at a higher risk for developing dementia. The most common form of dementia is Alzheimer's Disease, and currently, it can only be definitively diagnosed in a

发表于:2019-01-14 / 阅读(91) / 评论(0) 分类 VOA标准英语2011年(一月)

MRI-like Scan May Help Identify Alzheimer's Alzheimer's disease normally gets a definitive diagnosis only after the patient dies, and an autopsy finds certain distinctive structures in the brain. Recently, though, scientists have been seeking some so

发表于:2019-01-14 / 阅读(83) / 评论(0) 分类 VOA标准英语2011年(八月)

访谈录,规划,职业,发展前景,[Harry Smith] You may not wanna watch this next segment. What do diet doctors, TV meteorologists and pet psych, psychics have in common? Fortune magazine columnist and workplace guru Stanley Bing says

发表于:2019-01-16 / 阅读(84) / 评论(0) 分类 访谈录

Sleep. It's something we spend about a third of our lives doing, but do any of us really understand what it's all about? Two thousand years ago, Galen, one of the most prominent medical researchers of the ancient world, proposed that while we're awak

发表于:2019-01-24 / 阅读(115) / 评论(0) 分类 英语语言学习

Those fiery letters, meanwhile, had disappeared; there were ten seconds of complete darkness; 此刻那些火焰一样的字母消失了。十秒钟完全的黑暗, then suddenly, dazzling and incomparably more solid-looking than they would have se

发表于:2019-01-29 / 阅读(99) / 评论(0) 分类 美丽新世界

HEALTH REPORT - New Alzheimer's Drugs Tested By Cynthia Kirk Broadcast: Wednesday, August 04, 2004 This is Phoebe Zimmermann with the VOA Special English Health Report. Researchers say two experimenta

发表于:2019-01-30 / 阅读(58) / 评论(0) 分类 健康与经济

Who says Santa Claus has to be white? Until now, your iPhone's emoji keyboard did. 谁说圣诞老人一定要是白脸的?现在,你的苹果表情键盘可以实现这一转变。 A new beta release of iOS 8.3, currently available only to softw

发表于:2019-02-06 / 阅读(90) / 评论(0) 分类 阅读空间

Alpha girl can always outperform men in study, work and sports. So, where there are alpha women, there are beta men。 阿尔法女孩也称女孩,指许多方面的能力和表现都在同龄男性之上的年轻女性。这个词源自美国哈佛大

发表于:2019-02-08 / 阅读(83) / 评论(0) 分类 四六级写作指导

Microaoft has finally launched the full version of its Office suite for Android phones. 微软终于为安卓手机发布了完整版Office套装。 Word, Excel and PowerPoint are now available for free from Google Play following a beta test of the a

发表于:2019-02-13 / 阅读(68) / 评论(0) 分类 阅读空间

Let's begin by looking at what we currently understand about the neuroscience of Alzheimer's. 让我们先看看目前神经学上对老年痴呆的了解。 Here's a picture of two neurons connecting. 这是一张两个神经元连接的图。 The p

发表于:2019-02-13 / 阅读(92) / 评论(0) 分类 TED演讲国际问题篇

Science and technology 科学技术 Embryonic stem cells 胚胎干细胞 Looking up 进展中的干细胞研究 Stem-cell research is now bearing fruit 干细胞研究开始结出硕果 FOURTEEN years ago James Thomson of the University of Wisconsin

发表于:2019-02-16 / 阅读(95) / 评论(0) 分类 经济学人科技系列

中文里很多与相亲、恋爱相关的流行词汇你肯定不陌生,但如果问你它们的英文说法,你可能不一定有把握。下面的几个词,仅供探讨~ 恋爱相关的实用口语 1. dry spell: 空窗期 spell这里是一段时

发表于:2019-02-18 / 阅读(106) / 评论(0) 分类 英语口语

SAN FRANCISCO, June 28 (Xinhua) -- Microsoft on Tuesday launched its cloud service Office 365, which was the software giant's answer to competing products from Google and other companies. The service includes on-line versions of Word, PowerPoint, Exc

发表于:2019-02-19 / 阅读(80) / 评论(0) 分类 英语新闻
学英语单词
acronis
alderwood manor
Altnaharra
antipolarity
arbane
Arwala
assignable interest
backslashed
bedropping
beechwood creosote
by-street
carcerals
cathode lug
chloropsia
cladophora sakaii
clamp hook
code bar
conjugate series
controllable spark gap
creoles
customs flag
cuvet adapter
cylinder-type tank
day-school
denominator
diglycol aldehyde
electron cyclotron resonance heating
Estolate
expected life
follow something up
gasket piece-cutting machine
got the point
gypsyweed
high-speed ground transport system
HSPG
hydraulic tension regulator
intermediate switching region
intermittent moderate rain
laconicly
lavoy
lead disilicate
lunisolar tide
lyssacine
macaroon
marginal gingiva
mesenteric artery embolization
methallenstril
Minimum Investment
monetary and credit control
moonery
multipurpose timber-harvesting machine
neums
nonsmoothed
nonvolitional
over-allocations
overseas legal reserve
oxanthrenes
Pareto solution
Peoples Insurance Company of China
pixote
pneumatomete
Pnol
polytraumatism
portio dura
postcerebellar
potassium tartrate
power level control
pre-flight calibration
primordial gut
publishers requirements for industry standard metadata
Qomolangma, Mount
rakestraws
Ranunculus grandis
red fish
Remote Desktop Protocol
remove risers
residual shear strength
retinopathies
runabout
rupture velocity
Sanluri
saw guard
senior relative
sets on
shortsightedness
shutdown period
siphonapterology
SNA (systems network architecture)
station-line facilities
steam-turbine lubricating system
subitaneousness
synergisms
t.v.tuner
theoretical space relationship
Tillac
training system
tybamate
unbenefited
unbenign
variable-cell method
well-rewardeds
Yanadani