铁硅酸盐

Broadcast: August 4, 2003 This is Bill White with the VOA Special English Development Report. Safe drinking water has always been rare and valuable. Throughout the world, drinking water has to be stor

发表于:2018-11-27 / 阅读(586) / 评论(0) 分类 VOA2003(下)-发展与科学

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(140) / 评论(0) 分类 口腔临床英语对话

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(96) / 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(86) / 评论(0) 分类 Scientific American(九)月

DEVELOPMENT REPORT – January 7, 2002: Storing Drinking Water By Gary Garriott This is the VOA Special English Development Report. Safe drinking water has always been rare and valuable. Throughout th

发表于:2019-01-07 / 阅读(262) / 评论(0) 分类 农业与发展

Almost all cells need iron to grow. Now, researchers have identified a link between the body's system for regulating iron and breast cancer. The discovery could help doctors predict the course of breast cancer disease and even help them decide the mo

发表于:2019-01-13 / 阅读(267) / 评论(0) 分类 VOA标准英语2010年(八)月

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(117) / 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(130) / 评论(0) 分类 TED演讲科学篇

Almost all cells need iron to grow. Now, researchers have identified a link between the body's system for regulating iron and breast cancer. The discovery could help doctors predict the course of breast cancer disease and even help them decide the mo

发表于:2019-01-19 / 阅读(126) / 评论(0) 分类 VOA双语新闻 2010年8月

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(121) / 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(182) / 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(121) / 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(115) / 评论(0) 分类 VOA标准英语2008年(十月)
学英语单词
abassi cotton
accumulated points
additional indicator system
akrons
aluminium-covered steel wire
anagre
anti-phrastical
antiorgan
antithetic correlation
bacchanale
Bakewell I.
Ballymore
bearing test
borborids
car carrier semitrailer
carboxylatractyloside
Chaetodontidae
classical pathway
cut-off of injection
daiquiri
dead reckoning system
decilion
delignate
denitrogenates
ditsier
driven shaft bearing cap
drop-down
Elymus cylindricus
enzyme simulation
faithful permutation representation
family rhinolophidaes
fascinage
front tool
furthers
Gamow-Teller theory
George Dibdin Pitt
guideway grinder
H9
heliophobous community
high-polisheds
holding brake effort
honshus
hot air balloons
I-shaped plan
ill-judgedly
information transformation
into the blue
Karama, Plat.de
liner terms
liquidus-curve
Loures
low heat portland blast-furnace-slag cement
lucaste
luck into
Macristiidae
makeup n2 supply
mast hinge
medium pressure iron-catalyst synthesis
Menyanthes trifoliata L.
metallic fiber material
minion of the law
Miosireninae
movable gate
neotelomycin
Newton's hypothesis
nonmales
on with word
pack something in
parallelogrammatic
Pearblossom
pectinogen
peritalus dislocation
phenylmercuric nitrate basic
positive stripe
power separative
power station control (system)
prickles
public telegram service
quarter phase circuit
range of composition
removal of fault
rests up
Roznava
scavenger flotation circuit
schlossmuseum
serorogenic phase
sliding pintle
soul singer
stagette
supporting point
tender plant
test log
thrombosis of hepatic artery
tout about/around
transverse flute
tropic turgor movement
Troyanivka
true rolling bit
valve retainer cotter pin
view finder focus
weathering correction
webboard