临界晶核尺寸

So if you popped open the blueberry and were searching for the nucleus 如果你在蓝莓的内部搜索原子核,结果是一无所获。 You know what? It would be invisible. It's too small to see! 知道为什么吗?因为我们看不到它!它

发表于:2018-12-08 / 阅读(62) / 评论(0) 分类 TED演讲教育篇

Situation Critical 十万火急 by Kevin Lustig In some jobs, danger can appear at any moment. In the blink of an eye, the routine can become perilous. This month, the National Geographic Channel shows us what happens when a normal situation becomes

发表于:2018-12-08 / 阅读(98) / 评论(0) 分类 常春藤解析英语

The UN has just issued a report saying that six million people in Myanmar need food right now. How critical is the situation? It's a real paradox, because in the same year that Cyclone Nargis devastated the, what had been the rice bowl of Myanmar, th

发表于:2018-12-11 / 阅读(98) / 评论(0) 分类 访谈录2009

1. nuclear a. 核子的,核能的 2. nucleus n. 核 3. retail n. /v. /ad. 零售 4. retain vt. 保留,保持 5. restrict vt. 限制,约束 6. sponsor n. 发起者,主办者 vt. 发起,主办,资助 7. spur n. /vt. 刺激,激励 8. trium

发表于:2018-12-18 / 阅读(66) / 评论(0) 分类 大学四六级阅读

new a.新的;没经验的;重新开始的;新发现的 news n.新闻 newspaper n.报纸 next ad.其次 a.下一个 prep.靠近 n.下一个 nice a.美好的;正派的;令人高兴的;细微的 niece n.侄女,外甥女 night n.夜晚;黑暗

发表于:2018-12-30 / 阅读(117) / 评论(0) 分类 大学英语四级词汇拼读版

In Houston, Flight director Kranz is trying to make sense of the barrage of information. I am completely surrounded with reports coming in that I dont fully understand, but frankly, problems are our business, and I thought we are going to solve these

发表于:2018-12-30 / 阅读(144) / 评论(0) 分类 国家地理2007年

Finland Finland is an enormous land of lakes and forests. It's the largest, totally unspoiled area in Europe. Around 65% of Finland is made up of forests. The genius of the Finns lies in their commitment and coexistence nature. On the other hand, nat

发表于:2018-12-31 / 阅读(317) / 评论(0) 分类 有声杂志阅读

A man walked into a dress shop and told the clerk he wanted to buy a surprise formal evening gown (礼服, 睡袍)for his wife. What size? asked the clerk. The man shrugged blankly. Trying to help, the clerk inquired, Well then, what are your wife's

发表于:2019-01-06 / 阅读(152) / 评论(0) 分类 趣味英语

今天我们要学的词是size up。 To size up, 对某个人或某件事进行估计、评定。She is sizing up her romantic rival, 她仔细揣摩情敌的实力。The candidate sized up the situation and decided to withdraw, 这位候选人对选战

发表于:2019-01-06 / 阅读(70) / 评论(0) 分类 英语单词荟萃

Jackie: Welcome to BBC Learning English dot com and Insight Plus - a series first broadcast in 2001 that looks at the language of issues you hear about in the news. How far should science go to help the sick and the suffering? Today on Insight Plus,

发表于:2019-01-07 / 阅读(135) / 评论(0) 分类 英语讨论

By Greg Flakus Houston 05 March 2008 Hillary Clinton made a stunning comeback in Tuesday's primaries and caucuses, winning decisively in Ohio and Rhode Island and coming out on top of a close race in Texas. John McCain won all four states, to clinch

发表于:2019-01-08 / 阅读(85) / 评论(0) 分类 VOA标准英语2008年(三月)

By Melinda Smith Washington 06 September 2007 In 2006, the World Health Organization issued a report that a critical shortage of doctors and nurses has contributed to severe health problems in Africa and parts of Asia.The report said at least four mi

发表于:2019-01-08 / 阅读(111) / 评论(0) 分类 2007年VOA标准英语(九月)

不久,他们的名字便被简化成了詹斯和帕西。他们俩是大宅那边妇女们--两个老处女和孀居无子的女管家--的宠儿;她们对婴儿宠爱得要命。这就使菲轻而易举地将他们忘却了,因为他们有三个

发表于:2019-01-29 / 阅读(61) / 评论(0) 分类 荆棘鸟

SCIENCE IN THE NEWS - Americans Win All the Nobel Prizes for Science in Two Thousand SixBy Nancy Steinbach Broadcast: Tuesday, October 17, 2006 VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special En

发表于:2019-01-30 / 阅读(82) / 评论(0) 分类 2006年慢速英语(十)月

binocular hemianopia Chinese双眼偏盲 binocular microscope Chinese双目显微镜 Binswanger diseaseChinese 宾斯万格病(皮质下脑病) biopsy Chinese活检 Biot's respiration Chinese比奥呼吸(间歇性呼吸暂停,见于颅内压增高) bipolar neuron Chinese双极神经元 bitampo

发表于:2019-02-07 / 阅读(96) / 评论(0) 分类 英文语法词汇

In the Pacific state of Hawaii, U.S. President Barack Obama on Sunday told leaders of the 21 Asia Pacific Economic Cooperation economies that the region will be key to U.S. economic recovery. With much of the formal summit activity, including a worki

发表于:2019-02-08 / 阅读(86) / 评论(0) 分类 英语新闻

Reproductive technology 生殖技术 Mum, Dad and Mitomum 妈妈,爸爸与代孕妈妈 Britain may allow babies with three biological parents 英有望允许新生儿有三个亲身父母 ASSISTED reproduction is one of those rare areas in which Br

发表于:2019-02-16 / 阅读(87) / 评论(0) 分类 经济学人科技系列

Science and technology 科学技术 The nature of humanity 人类本质 What's a man? 什么是人类 Studies of brain genetics are starting to reveal what makes humans human 大脑遗传研究,为你解开人之所以为人的奥秘 THE problem wi

发表于:2019-02-16 / 阅读(124) / 评论(0) 分类 经济学人科技系列

By Scott Stearns Dakar 08 October 2009 Cameroon President Paul Biya (file photo) Authorities in Cameroon have closed a private FM radio station that has been broadcasting illegally from the capital for several months. The station was highly critical

发表于:2019-02-18 / 阅读(72) / 评论(0) 分类 VOA标准英语2009年(十月)

Reproductive technology 生育技术 Oh, baby 噢,宝贝! Britain's approval of babies with three genetic parents offers lessons for other countries 英国通过三亲婴儿决议,给他国带来的影响。 PLAYING God is what medicine is for.

发表于:2019-02-24 / 阅读(72) / 评论(0) 分类 经济学人文艺系列
学英语单词
actual enthalpy rise
adhesive-backeds
agitographia
alarm amplifier
asbestos wool
ascertains
asymmetrical anastigmat
athrepsy
attactoplasm
automatic machine equipment
available partition
back to back capacitor bank breaking current
back-chain
besoin
biomass increment
bloodworms
broked stripe
carbonyl-diimidazole
cervical operating set
coil quality
composite decline curve
composite laminate
conscionably
couch-grass
cross-frontiers
directed application
dollar depreciation
drift compensation
druery
dynamic check
dynamic compensation
encryptors
endometritis dysmenorrhoica
enicospilus iracundus
espressivo
eutrema yunanense franch.
foehood
front flame
George Simon Ohm
glass-plate capacitor
herbri
herniation
hi-jack
historic geomorphology
hypomenorrhea due to deficiency of blood
ically
ideal cascade
insulating packing
kasten corer
Lampozhnya
leaf filter
learning curve in cost estimating
legal status of the Antarctica
libidinosity
line fault
linear ramp
link resonance
Lozovik
lusers
main line disconnect switch
metrostaxis
missouri r.
Mφgeltφnder
non-propelled dredger
normal universe
orolingualis
out-of-process server
overheads
passive work slowdown
pedalfer
perfectionisms
phage-resistant mutant
phonosemantic
phytophthora nicotianae dehaan
plumite (jamesonite)
positive G
post-Gutenberg
power-on electric test
process load change
pusher-click banking stop
reactionariness
real school
schistocytosis
screech-owl
sea recovery
space-group symmetry
sparkles
stone tool
striveth
Suwannee R.
tongue toast
treatize
tuned plate
two-course radio range
unchoral
unexcusable
unfreed
unserviceably
vergence
visual light curve
volcanologies
zemis