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四硅酸盐

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(166) / 评论(0) 分类 口腔临床英语对话

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(186) / 评论(0) 分类 Scientific American(一)月

When Pyrex(公司名) cookware first came out, it was advertised as the ice box to oven, because itwas made of borosilicate glass which could weather large temperature changes without undergoing thermo-shock and shattering. But today, Americans Pyrex

发表于:2018-12-24 / 阅读(112) / 评论(0) 分类 Scientific American(九)月

This is scientific American sixty seconds science. I'm Christopher Intagliata. Got a minute? When Pyrex cookware first came out, it was advertised as icebox to oven. Because it was made of borosilicate glass which could weather large temperature chan

发表于:2018-12-24 / 阅读(106) / 评论(0) 分类 Scientific American(九)月

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(158) / 评论(0) 分类 医务英语

A few months ago the fairy tale came true. 几个月前,童话故事成真了! We announced to the world that we know what these streaks are. It's liquid water. 我们向世界宣布,我们已经知道这些条纹是什么了。是液态水。

发表于:2019-01-18 / 阅读(152) / 评论(0) 分类 TED演讲科学篇

Cassini just a few months ago also flew through the plume, and it measured silicate particles. 卡西尼太空船几个月前又从这些飞溅的水流中穿过,它检测到了硅酸盐颗粒。 Where does the silica come from? 这些硅从哪来的

发表于:2019-01-18 / 阅读(156) / 评论(0) 分类 TED演讲科学篇

Science and Technology Plastics There and back again 科技 塑料 旧法新用 An old idea may help solve the problem of plastic waste 一个老方法也许可以帮助解决塑料垃圾的问题 PLASTICS were once regarded as wonder-materials. They

发表于:2019-01-26 / 阅读(143) / 评论(0) 分类 经济学人科技系列

manganese n. 锰(元素符号为Mn) mantle composition 覆盖物的成分 Mercury n. 水星 molten v. 溶化;adj. 熔铸的 monitor n. 监视器,监控 mudflow n.[地] 泥流 Neptune n. [天]海王

发表于:2019-02-02 / 阅读(201) / 评论(0) 分类 英文语法词汇

BEIJING, Nov. 7 (Xinhuanet) -- A huge asteroid will pass closer to Earth than the moon on Tuesday, but experts say there is no cause for alarm. Asteroid 2005 YU 55 will pass about 300-thousand kilometers from the earth. The giant space rock is about

发表于:2019-02-08 / 阅读(146) / 评论(0) 分类 英语新闻

The U.S. space agency NASA's Mars probe Phoenix has detected icy snow falling through the Martian atmosphere. The spacecraft has also discovered material in the planet's soil that is leading scientists a step closer in their conclusion that life pro

发表于:2019-02-08 / 阅读(147) / 评论(0) 分类 VOA标准英语2008年(十月)

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(194) / 评论(0) 分类 万物简史
学英语单词
acceptance stamp
acetonides
agamid lizards
angle harp
arctic-alpines
auto-regressive moving-average series
auxiliary power rate
Barhi
Batista, Sa.da
bismarch brown
Bloch's nitric acid reaction
budgetary appropriation for wages
centricality
civil law tradition
coiled-coil heater
commerzbanks
constant power operation
coprecipitated powder
counterprogrammes
crakling sound
Crede's Ointment
cresty
cutting coulter
cytoexudation
desormeaux
deutosomes
dorso-alar-region
Duponol
enrofloxacin
excess-3 representation
fetal actual
file hammer
forefoot casting
galperson
gastriloquy
general burden
golfingia margaritacea margaritacea
grease the hand of
greater trochanter
hello and welcome
Hells Angel
homoscedastic errors
hydro-mechanical mining method
isomer distribution
jambas
kardamaina (cardamena)
key-display call indicator
kirklands
Koluphthisin
liquid-drop model of the nucleus
luxor
m.ed.
margination
Marrubium incisum
micropublishers
molecular adsorption
N-Methylamphetamine
neodymium hydrosulfate
not blush at
octylphenol
oil leakage sump
osso buco
owner of a right
oxidation and reduction process
physical requirements
pit barring
post-completion
proseminar
Pyrojec
recalescence point
rekick
relinquisheth
Rhodiola concinna
rising tides
roiliest
romanization of geographical name
Schwabach's test
Shipboard Oil Pollution Emergency Plan
short stock
slab rectifier
smart TV
snicking
sodium oleate
soil compresion
solvent-recovery system
somredness
sophocarpidine
stand to one's gun s
straightenerprint
sugar-cane
Surgicenter
switching in
take lease on
temporal order
temporary extra man advantage
tendment
testament mystique
thinophilus
tidal synobservation
trigger happy
vena media cerebri superficialis
Wiener capacity