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By Parke Brewer The women's pole vault provided one of the stirring dramas of the 2004 Olympic track and field competition. Until the mid 1990s, women's pole vault was not taken very seriously, mainly

发表于:2018-12-12 / 阅读(82) / 评论(0) 分类 VOA2004(下)--雅典奥运

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Don't be fooled by those big bovine eyes and the mouth slowly chewing cudcows have a magnetic personality. At least thats the claim made by German researchers in the

发表于:2018-12-24 / 阅读(117) / 评论(0) 分类 Scientific American(八)月

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 kneel [ ni:l ] She knelt to pray. v. 跪

发表于:2018-12-30 / 阅读(131) / 评论(0) 分类 每日攻克5词

Larry Newitt from the Geological Survey of Canada charts the movement of the magnetic North Pole as it wanders the icy reaches of northern Canada. To determine where the magnetic pole / is, we can't rely on one single observation. What I try to do is

发表于:2019-01-22 / 阅读(81) / 评论(0) 分类 自然百科2011年

Saturns apparently peaceful appearance is due to a haze of high level ammonia in the upper atmosphere, by looking deep into Saturn in the infrared, using the planets own internal heat as a light source, Cassini has revealed the planets true nature. T

发表于:2019-01-22 / 阅读(55) / 评论(0) 分类 自然百科2012年

China's first permanent magnetic monorail train has successfully completed a test run in the city of Qingdao, in Shandong Province. The high-tech urban transportation system features strong climbing capacity, a small turning radius, energy efficiency

发表于:2019-02-05 / 阅读(96) / 评论(0) 分类 cctv9英语新闻2016年

The latest data from the twin Voyager spacecrafts suggest the outer edge of the solar system is not smooth but filled with giant magnetic bubbles. Scientists say the turbulent bubbles are the result of the interaction between the Suns magnetic field

发表于:2019-02-06 / 阅读(109) / 评论(0) 分类 英语新闻

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发表于:2019-02-09 / 阅读(170) / 评论(0) 分类 加州语文教材California Treasures G5

By calculating how old the rocks are where we find these ancient compasses, we can figure out how long ago the magnetized parts were locked in. That tells us which direction was magnetic north tens of thousands of years ago. Surprisingly, its not alw

发表于:2019-02-23 / 阅读(101) / 评论(0) 分类 英语时差8,16

Magnetic North Pole Moving Faster Than Scientists Expected Earths north magnetic pole is moving, researchers say. It has moved so much, so quickly that a group of scientists hurried to change a model that helps guide shipping, airplanes and submarine

发表于:2019-03-12 / 阅读(262) / 评论(0) 分类 2019年VOA慢速英语(二)月
学英语单词
acetylomes
acylphenolphthalein
adsorption hysteresis
advection radiation fog
AFE analog front end
agathodemania
airdashed
balkh r.
barricuda
belt of weathering
Bereitschaftspotential
brake check
captive trajectory system
cash on receipt of merchandise
challot
cherry red heat
cracking distillation
Cross rates
cumulogranite
D.C. noise of tape
deprotestantize
descriptive economics
descriptive folder
Dietersweiler
dispermous
double angle shear
EPTHIANURDAE
focusing internal
forced landings
fried sliced squid
generalized principle of superposition
genus Harpullia
Gerroidea
gravitt
hewat
intercharacter spacing
isocaproaldehyde
J'ouvert
karakul
Kisbey
laminated veneer
Limboto, Danau
Loup River
Lubok Antu
Macromedia flash
management of commodity package
mill house
monomaniacally
multi-objective interactive programming method
multiprogrammed load controller
nail holes
needle selection
non-uniformed
Noveme
ocean energy power generation industry
one's ears perk up
operation area
opercula
opinionately
outside-inside
Panalgin
paribus
pentiti
percent days in milk
petajoule
piezoelectric element
pixes
planing work
Poa acroleuca
prankees
precipitation cone
primitive scheduling
productivity
pulsation damping dashpot
pushing tractor
quadruplex telegraph
registration authority
revenue recognition principle
running-on
seicentist
shale reservoir
sign posting
slabbering
socializations
softening cyst
spinsterlike
statically balanced
stepped surface
sugar-beet lifter
surface interpolation
temporal-spatial
TGAR
to begin with
top ca
track sheet
transportation depot
trap queens
ultor
undur
Uripa
vibrion septique
vinegar spinel (rubicelle)