[化] 五氟化钽

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(92) / 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(61) / 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(77) / 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(72) / 评论(0) 分类 VOA标准英语2010年(十)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(70) / 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(61) / 评论(0) 分类 英语单词荟萃
学英语单词
.kn
6T SRAM
acanthopagrus sivicolus
adipogenicity
aeration of water
air-chamber
antidepressive
aqcrs
aristolochia zollingeriana
automatic packaging unit
automatic rolling down speed control
bigtimer
Bulgarophones
carpal articulation
cascade pitch-chord ratio
case screw
chip scratch
clectroscope
collision liability clause
communalizing
competency framework
compound arbitrate
Constantine I
counter-rotating propeller
cristioru de jos
cut-off attenuator
daily cash balance
demister pad
double roller wave generator
dry silver paper
edge distance
elastoidosis
energy source control method
English sparrow
equilibrium argument
excitation-regulating winding
explosion-breccia
fores
forge degree
four-sided rolling machine
genus acinonyxes
George Seamount
Gludorm
handknitted
heat switch
Hertha
heterogenous tumor
Hisban
interim overhaul
jordanaires
key-station volume count
keyband
langrets
lesbianized
ligamenta laciniatum
lobite
mechanical high fidelity
metallometallation
mileage indication
multiarea
Nahǔng-ri
neoviridogrisein
non-monetary data
nondistracted
not sufficient funds check
obsessive-compulsive personalities
operation notice
Ornans
paralysis circuit
perca fluviatiliss
physical rotation
pipestone
positional notations
prior activity
protected goods
quethed
rami pectorales (aa. intercostalium)
rate of shorts
reeflike feature
religiousty
rendering kettle
seborrheid
selling and administrative cost
shur
sloganeering
sparidaes
street watering car
teg
tempetes
TLPC
traveling high
tresillian
trichanthum
tropical myositis
typesetter
unlawful violence
voltage ramp
waitperson
Wien-De Sauty bridge
year-end reward