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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(91) / 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(124) / 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(146) / 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(90) / 评论(0) 分类 自然百科2011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(117) / 评论(0) 分类 英语新闻

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发表于:2019-02-09 / 阅读(185) / 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(113) / 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(274) / 评论(0) 分类 2019年VOA慢速英语(二)月
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Amelie
antitechnicality clause
arm's reach
Axioupoli
Bacillus capsulatus septicus
band-brake
brachycephalics
burden change
capsizing moment bar shoe
carsrud
cast trimming
Cleona
comes first
connecting cleat
cosmic rays
crystal control transmitter
Curculigo gracilis
D-type boilerD
deck steward
duteousness
East Coast of Africa
electroanaesthesia
electronic commutator
equipment operational procedure
exposure distance
flat wrench
frenulum veli medullaris anterioris
gear motor for screw conveyer
genus bocconias
genus leptoptiluss
german ivies
grease marks
half slice
harrise
healthlessness
hemiaerophytic
heppner
heteroskedasticity and autocorrelation consistent estimator
Highlandville
hobgoblins
hole symbol
hyperarithmetic
i-sprung
infective adhesion of pharynx
janissary
jet ignition system
Kenyatta
lawier
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manere
Mary Warner
maschio
MCFP
miniopterus schreibersii blepotis
mirror microscope
miskitos
mizzonite
motional feed back
multicore transformer
NBV
operator-applied occurrence
Ostraya, Gora
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paulistano
period of variable star
phacoma
poges
pole carry
presystolic murmur
propeller shafting
pulp chamber block
ramus digitalis medius
regular evaluation
residual radiation
scant size
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scuiprum
self-organizations
showpersons
single-cam
Smoot-Hawley Tariff Act
spiral layer
spitbraais
ST_straight-and-regular_protruding-and-sticking-out
stitch sb up
symbolic table routine
table top word processing
techniques of price setting
trammel wheel
tranchet
two-shuttle plush
typhoon fifth
unavoided
uncomplainingly
undergetting
vaginal injury
Verkhov'ye
vermilion oil
wastable
water hardness ions
weight gain
zimbalon