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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(243) / 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(267) / 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(173) / 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(180) / 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(261) / 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(210) / 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(239) / 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(208) / 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(276) / 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(221) / 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(253) / 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(304) / 评论(0) 分类 万物简史
学英语单词
11-Oxycorticosteroids
21-hydroxylase
adelings
admurmuration
anti-academic
arrestographer
articulatio calcaneocuboidea
avon.com
axonapraxia
Bahir Dar
binary engine
birri
black-lead spar
bogus company
brand advocate
Brzuze
Burnet's axiom
carbapenems
carmagnole
cemental spike
charvette
competitive imports
cork drum
countersunk collar
crease mark
crescent fresh
cytheropteron kuochui
data manipulability
depost
digestors
document gage
drawer bottom
dyngnete
ecopla
fan resistance
field monitoring
genus Camptosorus
gloss measurement
goldrings
granulitic structure
graphic mapping control point
hexachloro-cyclohexane
high temperature heating
hormone replacement therapies
idle about
ifds
in default of payment
indentation ratio
iua
Kennedy L.
linear IC
loxygen evaporator
lupene
marketable
mentha haplo calyx briq. var. piperascens (malinv.) wu et li
misdeals
monogamist
Moroccanism
moyamoya
Mydrim limestone
nastran
network entity
objective changer
on-label
orthsdactylous
overspeed (emergency) governor
Pang Long
paralytic incontinence
passive glasses
pedalcar
pluvial age
pre-distortion
prelamination
provably difficult
pulpation
radius block
Rajanpur
recruitment of follicles
reorgs
RSWC
shengs
snowscenes
statement of scale
steering gear linear-angle ratio
strangeness conservation
subsidiary ledgers
symbolic goods
temperature sensing device
transverse feed
tserenpiliyn
tunnel drying oven
two-neck flask
unveil
Uraricoera, R.
vehicle attitude
vent tube
video arcades
vignettists
whin sill
word-endings
youths-on-age
zomg