【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
acetylformic acid
Aguelal
almanc
alpha iron alloy
argenti picras
bleaching liquid
breitschwerdt
buhabad (behabad)
candida-like
caperis
cassade
chaung
chininum
cigarette-smoking
cobnuts
cocoswood
cold fog
collateral fraud
constructive field theory
couldas
deductions from income
deletrium
deminishing
dictyostelium monochasioides
downy mildews
drawing chamber
ecofreaks
educational facility
egg pad
electron-capturing compound
elodeid
employee's saving fund
Enterobius vermicularis
Eriolaena ceratocarpa
evidence verification authority
extremely finely crystalline
final coating cement
hepatic odor
hook hoisting
in kilter
intercostal articulations
internal data set
ionospheric
Itea ilicifolia
kingsman
korean wars
lignum
loan principal repayment
loops in
manic episode
marsonek
minimum tree problem
nanocephalies
negative affect escape theory
neoconceptualist
north by east
organic function of productivity
out-of-hand
patient identifier
periodic procedure
process of wave propagation
production technique of high grade zinc oxide
pseudospintronics
Pun.
Quelaines-St-Gault
radar reflectors
rated time
recognition device
refractory remming compound
reliable seal
remittance by Chinese national residing abroad
rhudy
ryip
salt plains
schizomitrium papillatum
Secret Intelligence Service
self-leveling
semisaprophyte
Seoul
shepherd's weatherglass
short-circuit current multiple
smokers' vertigo
sorption gradient
supplementer
sweet buckeye
synchronizing channel
total detection efficiency
travel(l)ing winch
trimellic acid
trustability
tubulary
uhuru unit
untethered remotely operated vehicle
uppermost belly of omohyoid muscle
Uula Hiid
vapour liquid separator
villamil
walden pond
wattses
Whether in Free Pratique or Not
Winnie-the-Pooh