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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(249) / 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(280) / 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(180) / 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(191) / 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(268) / 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(213) / 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(244) / 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(218) / 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(287) / 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(230) / 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(263) / 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(325) / 评论(0) 分类 万物简史
学英语单词
A lot of water has run under the bridge since.
affranchise
after-the-event
aminourea
angle of obliguity
arrowana
asymptotic bayes procedure
asymptotic degeneracy
attain distinction
Backstairs Pass.
beat the living daylights out of someone
Beolgyo
bicalcarata
black wind
bounce light
brephotrophium
calumniates
carbonisation high temperature
casting stress
chicken sandwish
cirrus clouds
civery
co-prosperities
composition-factors
cross-areas
cultural traditions
debenture dividend
direct-reading tachometer
drap-de-dame
electrooptic(al) character recognition
electrostatic radius
elite party
fetal macrosomia
flanged coupling
full container
gelseminic acid scopoletin
generator monitoring unit
giant fibroadenoma of the breast
gymnarchid
haldus
haterly
Havering
helixes-loop-helixes
homogeneous social group
hyserpa nitida miers.
inflation-busting
international monetary crisis
jerib
Johnson,James Weldon
Konevskiy, Ostrov
Level 6
lineae nigra
meniscectomies
multiple cognitive abilities
non - stop train
non-polluting or pollution-reducing processes
nonlogical
nonproductive sphere
normal view
Oasil
oceanos
one step
onon
paper drinking cup
pastory
peoplers
pinus sibirica(loud.)mayr
place into the soil
plutonia molybdenum cermet
Presbytes entellus
product packaging
pseudo-first-order rate law
public record
Quercetin-3-O-xyloglucoside
Quilmes, Sa.del
re-enlistment
registered images
rescatterings
sack racer
Salkowski-Autenrieth-Barth's methods
sanicles
sell-by dates
separate but equal
shamao series
sheave wheel horizon
Shira-saki
sinerom
sixty-fifth
sodium alkyl amino-propionate
spiroplectammina taiwanica
St-Denis-lès-Martel
stigmatic fluid
switch command
ta wu
temianka
tension of articulation
thoracoepigastric vein
trehubs
Uridrol
vertical steaming and stir-frying cauldron
wet checks
without canvas front mounted binder