[化] 四氟氧化钨; 四氟化氧钨

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Beauty is only skin deep. And the beauty of shiny white teeth is even less deep. Because a new study shows that fluoride forms a thinner protective shiel

发表于:2018-12-02 / 阅读(115) / 评论(0) 分类 Scientific American(十二)月

07 牙病的预防与治疗 DATE=2-27-01 TITLE=SCIENCE IN THE NEWS #2113 - (1)Dental Health BYLINE=Nancy Steinbach VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with Science in the

发表于:2018-12-07 / 阅读(86) / 评论(0) 分类 科技之光

Is it necessary to have cavities in the baby teeth repaired? 乳牙蛀成了洞还有必要补上吗? If the baby teeth are going to fall out, I don't think that it matters if they become decayed. 如果乳牙是要脱落的,我想蛀了也没有关

发表于:2018-12-27 / 阅读(114) / 评论(0) 分类 口腔临床英语对话

86 去痛片须慎用 DATE=8-16-01 TITLE=SCIENCE REPORT - OxyContin Warning BYLINE=Jerilyn Watson (Start at 1'02

发表于:2019-01-02 / 阅读(120) / 评论(0) 分类 科技之光

A cluster of villages in China's Guizhou province has been plagued by an outbreak of disease that damages teeth and bones. Now, a new study by Chinese and American researchers puts the blame on polluted coal burned in home fireplaces. In small quanti

发表于:2019-01-14 / 阅读(95) / 评论(0) 分类 VOA标准英语2010年(十)月

紧凑型荧光灯 Compact Fluorescent Lamp 金卤灯 metal halide/halogen lamp 溴钨灯 Bromine tungsten lamp 汞灯 mercury lamp 钠灯 Sodium lamp 卤钨灯 Halogen tungsten lamp 碘钨灯 iodine tungsten lamp 氖灯/霓虹灯 neon lamp 石英灯

发表于:2019-01-17 / 阅读(96) / 评论(0) 分类 实用英语

Ah yes.The ol' fluoride rinse at the dentist. Not pleasant. But hey, good for your teeth, right? 没错,这是牙医洗牙用的含氟漱口水。确实够闹心的。但毕竟对你的牙齿有益不是吗? Well now materials scientists have been

发表于:2019-01-20 / 阅读(83) / 评论(0) 分类 2018年科学美国人1月

Beginners. Well, it's time for a new dog. For the past year, we have been a one dog family. But, you know, our dog, Rosie, is a wildly social lady. She goes crazy any time she meets another dog, a cat, a mouse, or a bird, let alone a human. But, the

发表于:2019-01-28 / 阅读(85) / 评论(0) 分类 英语博客 A cup of English

SCIENCE IN THE NEWS - November 26, 2002: Dental Health By Nancy Steinbach VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with Science in the News, a VOA Special English program abo

发表于:2019-01-30 / 阅读(102) / 评论(0) 分类 科技之光

今天我们要学的词是 fluoride. Fluoride 氟化物。The U.S. government is lowering the recommended amount of fluoride added to drinking water for the first time in more than 50 years. 美国政府50多年来首次降低饮用水建议添加的氟

发表于:2019-02-02 / 阅读(88) / 评论(0) 分类 英语单词荟萃

By Melinda Smith Washington 14 May 2007 Top executives of the company that makes a powerful painkiller called Oxycontin admitted this week they lied about the drug's addictive qualities in order to boost sales. As VOA's Melinda Smith reports, worldwi

发表于:2019-02-03 / 阅读(140) / 评论(0) 分类 2007年VOA标准英语(五月)

Beginners. Today, Foxy had an appointment with the vet for vaccinations and a general check-up. She is about eight months old, so she needed her second set of vaccinations. The vet also needed to see if her growth was normal and healthy. I put her in

发表于:2019-02-07 / 阅读(108) / 评论(0) 分类 英语博客 A cup of English
学英语单词
acid electrode
acoustic effect
afforestation
angitrit
annidation(ludwig 1948)
anserine reaction
application transaction program
Arundinaria amabilis
ask for a leave
atmospheric radio wave
back timing
Ban Yang Yong
Bantayan
body-building
borrower lender relationship
Brethren in Christ
by lease
cane bundler
capital messuage
cell-killing
chaum
checking sum
common utility
differentiable knot
dilatometric effeCt
diploparthenogenesis
dissuasions
double sling
drafting force
education for the elderly
electroacupuncture
false pimpernels
fencamine
frequency comparator
Goleszów
gpf (gross peaking factor)
graphite limiter
hammam
high pressure surge
Holophane
home supervision
hooked plate
hot wall
import-substitution strategy
influencing variable
isochronization
Kinmuck
Koester magnet steel
Kvashninskoye
kwilu (cuilo)
lagavulins
latent group
makes much account of
marahau
Massoretic
Mesogicea
Miniconjou
Nephronex
oligoelement
on pension
Oppenheim, E(dward) Phillips
order processing menu
outside window glass door
Park Gate
Phalaenopsis amabilis Bl.
phoney
pilot operated control
platform auger
point-wise
poststorm
primary stipe
printed electronic circuits
recording film plane
rigours
roadbuilders
safety classification
semifinished nut
servo-valve
she'd've
singing bowls
Socialist Labor Party
solasonidinee
stack gas monitor
stellaris
sterile distilled water
stoppage period
stretch-proof
subsidized loan
Systems Programming Language
Tha Song Yang
tranquilization
trans-interchange
Tuchow
tunnell
uncontrollableness
undervoltage device
vertical machining centre
vinegar stock
vision mixing system
volume curve method
wortworm
year round