汞齐电池

发表于:2018-11-28 / 阅读(623) / 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(307) / 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(243) / 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(220) / 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(183) / 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(197) / 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(166) / 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(235) / 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(268) / 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(246) / 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(191) / 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(217) / 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(199) / 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(362) / 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(311) / 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(213) / 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(268) / 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(261) / 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(242) / 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(255) / 评论(0) 分类 口腔临床英语对话
学英语单词
addend digit
adoxographer
agaritas
alfalfa plant bug
altemating megnetic flux
arnold schoenbergs
basalolateral
beer kegs
beileve
canonical assembly
casassa
cipollas
coevous
cog in the machine
cold set grease
crossbearer
Crossware
cucumis prophetarus l.
d-block element
describe environment
dorsal median sulcus (or dorsal median groove)
electronic printer
Eshkanān
estivage
fanfares
first installment of goods ordered
Freneau
functionary
gas analysis meter
globular pearlites
grammar system
green hata
grundskola
hard finish
hazardous transition
high speed flash photography
Himekami-yama
holtermann
hyaline-quartz
i-visited
inhalation tuberculosis
insulating brick
John Cage
jury foreman
kantners
kiddah
kilwa i.
leaf of negundo chastetree
leaky-barrel model
margalitic soil
maximal torsion subgroup
metallic-covalent mixed bonding
modulator demodulator
moragne
multifaction
nabuco
Noetherian algebra
null divisor
opv
orchardmen
pellaeas
pickup press
piecewise linear system
plastic forceps
poochy
potential climax
prisms
pubescent oak forest
quality assurance inspection
raised-eyebrow
recursiveness of stack automaton
reference spectrum
relative pollution index
relocatable addresses
rookeried
scouring equipment
shaft key
shockheaded
side-draw tray
skip charging system
slash fire
soldier-like
standing up to
Stediril
summer-heat being likely to disturb heart
switch trading
system of units of measurement
tectonic flow
training board
trommsdorff
Trumbull, Jonathan
two-terminal generator
UCBR
unpizzled
Urobak
walking boss
wet spinning frame
where there's smoke there's fire
wood shavingss
worked people
wryer
yist