[建] 矽酸四(2-乙基丁酯)

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(364) / 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(422) / 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(306) / 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(307) / 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(420) / 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(342) / 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(367) / 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(340) / 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(431) / 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(370) / 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(409) / 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(443) / 评论(0) 分类 万物简史
学英语单词
'Ndrangheta
a burst of applause
AAARCs
acceptance of succession
account receivable under forward contract
activated antiroll tank stabilization system
antiboycott law
atopic dermatitis
ball-busting
baring-gould
beat someone to ribands
bierg
blue bull
brand loyalties
ceruminolytic
Christify
Clostridium carnis
co-operative bank
cohost
cold trap removal tool
cold-laid concrete
convas polishing wheel
correlation theorem
cupric chlorite
declamatory
deoxyribofuranose
diplophyllum taxiflium sill
double-fired heater
earth-return line
eisteddfod (wales)
eonomine
Essequibo
eugenia aquea
explosive injury
featured players
ferocious-looking
flickered
fractional volatilization
freight prepaid
frequency storage
furlike
get ... down
go into the question
goosepen
ground information processing system
guaranteed interest
Hallervorden-Spatz(syndrome)
harbor speed
healingly
hoof-pad
horizontal shear machine
iron
Jordan measurable
Juelsminde
lauter tank
little infusion
lovesong
methyltrinitrobenzene
multibag filter
myosteoma
nonsinusoidal waveform
nontypically
nuclear auxiliary building
off-the-wall
Oxydimethylquinizine
paged memory management
Pancoast tumor
parallel cascade action
pelt wool
plumber's snake
Porter County
power take off unit
power tube
pretestsurvey
quingenarious
quoins
rabbit fish
ragtrade
real time output
retaining time of control process
S. L. C.
sacramentalists
semi-open furnace
Shilovka
signal to mask ratio
Sinfra, Dép.de
sinkanter
skiffle groups
slot-keyed element
slow-setting emulsified asphalt
sodium benzoate test
sports stadiums
unai
ungulate
unsaturated permeability
uprated engine
VHLL
wasteyard
Weichsel
wheat starch
wodgy
Zexon