【有机化学】氟化铷

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(200) / 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(149) / 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(184) / 评论(0) 分类 口腔临床英语对话

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(164) / 评论(0) 分类 VOA标准英语2010年(十)月

China has launched two satellites into space on a Long March carrier rocket from the Xichang Satellite Launch Center in Sichuan Province. The satellites are part of the country's growing BeiDou Navigation Satellite System. The launch of the Long Marc

发表于:2019-01-19 / 阅读(184) / 评论(0) 分类 2018CRI中国国际广播电台

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(156) / 评论(0) 分类 2018年科学美国人1月

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(161) / 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(152) / 评论(0) 分类 英语单词荟萃
学英语单词
-philism
achylia gastrica
adverse climatic conditions
aeroodontalgia
air-lubricated thrust bearing
algaes
alomar
Ano Poroïa
antizymic
application specification
at the top table
auto-theft
Bad Berleburg
beater opener
Bencao Yanyi, Augmented Materia Medica
bibliopegistic
billups
black magnesia
bobrick
break user connection
buffer address
bundobusts
central flux
centrifugates
chromic ammonium alum
civil penalty provision
coal - fired power plant
coase conjecture
color chart adjustment
colour positive film developer
creaze
cryotransfers
cybergenre
developing powder
Diano Marina
distributor's profit margin
double-deck machine
draft constant
dump wagon
electric detonating circuit
electro-acupuncture
flapless amputation
foreign volume
Fredensborg
Garnett, Kevin
Gengenbach
Gettysburg Seamount
half slope method
hartstongue
horse with ommel
initialize a variable
inner nasal opening
kalesti
Karynzharyk, Peski
kivett
krstic
lintine
logical arguments
maritime engineering
maximum credible earthquake
mechanical cutting
metal oxide semiconductor field-effect transistor
michelia compressa compressa
mockeries
nasal base breadth
navs
nonbiogenic
nuclear paralysis
outside run
papakha
phagedenic pyoderma
Phyllopharyngidea
pilot pile
plant grip
platinum difluoride
prong cell
Proske-Watson's test
Pseudocheirus
pulaskite oplite
qualified audit report
register-sender
Sc-perrierite
schedule outage
shock region
side-pocket mandrel
Southerton
sparkin
stem structure
stir-fry with honey
stone-cold
storting
strategic air
stunting
Svartån
synchronizing moment
technical concept
the United Nations
toquets
under review
viscosity improver
wen jen
wind-resistance test