汞齐电池

发表于:2018-11-28 / 阅读(549) / 评论(0) 分类 疯狂英语2003年

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

发表于:2018-12-01 / 阅读(236) / 评论(0) 分类 VOA2003(下)-环境与健康

Marvel Recognizes Young Black Women As 'Ironheart' Prepares To Don Tony Stark's Suit play pause stop mute unmute max volume 00:0003:33repeat repeat off Update Required To play the media you will need to either update your browser to a recent version

发表于:2018-12-02 / 阅读(173) / 评论(0) 分类 2016年NPR美国国家公共电台10月

Good morning Mrs. Hall. If none of your teeth are bothering you, I'll restore the tooth with the largest cavity. 霍尔太太,早安。 假如你的牙齿不让你难受的话, 那么我就把蛀的最厉害的牙补一补。 This is the tooth th

发表于:2018-12-03 / 阅读(172) / 评论(0) 分类 口腔临床英语对话

What is the chance of the pulp dying,Doctor? 医生,牙髓坏死是常见的死吗? You can't be absolutely sure in these cases,but I'm very confident (sure) that everything will be OK. 你的情况不一定是牙髓坏死, 我有信心一切

发表于:2018-12-03 / 阅读(135) / 评论(0) 分类 口腔临床英语对话

allure v.引诱,n.诱惑力 allurement n.诱惑物 alluvial adj.冲积的 ally n.盟国,支持者 almond n.杏树,杏仁 alteration n.改变,变更 altercation n.争吵,争论

发表于:2018-12-08 / 阅读(133) / 评论(0) 分类 GRE英语

Theres been a massive political protest in the South Korean capital Seoul. Hundreds of thousands of people turned out to demand President Park Geun-hyes resignation. She is accused of allowing her friend Choi Soon-sil to access government documents w

发表于:2018-12-20 / 阅读(116) / 评论(0) 分类 中英双语新闻

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

发表于:2018-12-30 / 阅读(188) / 评论(0) 分类 国家地理2008年

Mercury Fillings Seem Safer over Time A study in the journal Chemical Research in Toxicology finds that mercury on the surface of dental fillings slowly turns to an inert sulfide compound, which should keep the mercury from harming the nervous system

发表于:2019-01-02 / 阅读(210) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? Robin Williams thought that the platypus was cobbled together by an inebriated deity: Lets take a beaver. Lets put on a ducks bill. Now we know how weird the platypus is

发表于:2019-01-08 / 阅读(192) / 评论(0) 分类 Scientific American(五)月

By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme

发表于:2019-01-13 / 阅读(143) / 评论(0) 分类 VOA标准英语2008年(五月)

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

发表于:2019-01-31 / 阅读(170) / 评论(0) 分类 2007年VOA常速英语(十月)

By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo

发表于:2019-01-31 / 阅读(160) / 评论(0) 分类 VOA常速英语2008年(四月)

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(314) / 评论(0) 分类 英语新闻

Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte

发表于:2019-02-07 / 阅读(274) / 评论(0) 分类 趣味英语

LONDON, June 16 (Xinhua) -- Drillings and fillings at the dentist's are always dreadful and make tooth decay treatment very unpleasant. But British scientists have developed a new approach of fixing tooth decay, which could get rid of all the drillin

发表于:2019-02-18 / 阅读(168) / 评论(0) 分类 英语新闻

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(221) / 评论(0) 分类 英语新闻

Sodium? 钠吗? Yes, sir. Mixed with mercury, it forms an amalgam that takes the place of zinc in Bunsen cells. 是的,先生。钠跟汞混合,成为一种合金,代替本生电池中所需要的锌。 The mercury is never depleted. Only the

发表于:2019-02-25 / 阅读(218) / 评论(0) 分类 《海底两万里》中英双语有声读物

GRE词汇对考生们的要求是比较高的,并且一些疑难的词汇会为考生们造成困扰,小编为考生们汇总了GRE考试八个难词,并做了相关解析。 abhor 憎恶,厌恶:恐惧或憎恨;痛恨 (ab-away-远离,hor-

发表于:2019-02-25 / 阅读(209) / 评论(0) 分类 GRE英语

Part six 第六章 Apicoectomy 根尖切除术 Excuse me. Is the Doctor in? 请问,医生在吗? Good afternoon, sir. The Doctor is here today. Do you have an appointment? 下午好,先生。医生今天不上班。你预约了没有? No, I d

发表于:2019-02-27 / 阅读(212) / 评论(0) 分类 口腔临床英语对话
学英语单词
-laden
acquired variation
activity approach
alegro
amynthas taipeiensis
auditnet
barge tow
be sporty
Befandriana
boyardee
brush-burn
buffer shank
butadienyl
candocypria violalis
chiang kai - shek
clevis bolt
codogenic
commit someone to prison
common plane of symmetry
Corbelin
ddinsert
doce
dowelling joint
electrical null position
episodic memories
estrepements
existing maritime procedure
expansive demand
fanworks
first epistle of paul the apostle to the thessalonianss
fissistigma oldhami (hemsl.) merrr.
fogcutters
forecasting future market
genus Melampodium
genus Mus
gradation numbers
grain bottom auger
heptaoxide
in fetters
incompetence of cardiac valves
indirect charge
jasan b.
jucker
lanae
lenguado
levi's
mecodium fimbriatum copel.
medium-efficiency filter
meter resistance
microct
mitchell
monolithic entity
Myrtophyllum hepatis
non monetary transactions
nuclear power unit
official statistician
operating model
optically controlled
orderin'
outer insulation
pace setters
paid-in capital from retirement of stock
paimistris
parent power
Parinase
peer-evaluation
phenolphthalcin
photosystem complex
plasma chemical vapour deposition
principle of checks and balances
prodegeeria javana
pushover wipe
Pythagorizing
receiving apparatus
remobilisations
reserves increase ratio
row piling
rubber gauge
sabia schumanniana diels
semangat
Seriphidium transiliense
shaddap
shakesperian
sign of the time
single armature
stream channel form ratio
stress axial
take the leap
tarnopolsky
taxing guidance system (tgs)
tritanomalous
usaacs
valence orbitals
Vernon County
visual flight rules on top
volcanist
volumedisplacement
well day
well geophone
yarded cattle
yellow globe lilies
zona transformans