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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(160) / 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(213) / 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(271) / 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(194) / 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(207) / 评论(0) 分类 英语新闻

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发表于:2019-02-09 / 阅读(300) / 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(181) / 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(365) / 评论(0) 分类 2019年VOA慢速英语(二)月
学英语单词
account-holder
ammo humpers
Arginotri-B
as she is standing
auto programming
average amount of current funds possessed
AY(assembly)
benihana
box springs
bushing puller
case-goods
category (soil)
center stand
cerconychia livida
chelodina longicollis
control chart for quality
coroner's court
crestwood
crosshead cottar
deep well pump
Dendrocalamus pulverulentus
diablotin
dose limit
down-hole hammer
failure resistance
feel anyhow
fill pattern
fluoroleum
fuel system of carburetor engine
full growth
full labour power
GanZhou
George Air Force Base
gladkov
glow plugs
goure
half and half joint
Hatudo
heavy current busbar
hexamethylphosphoramide
HOG1
homodesmic structure
Hooker electrolyzer
hyperbola of high order
i-grithed
Kastler
kilosteres
kit locker
klamm
Laut, Pulau
leiorhynchus
Linzolo
Llaima, Vol.
lytically
Martonvaara
nightliest
nodi cerebri
nondevelopable surface
oceanographic observation
oratosquillina manningi
ortho acid
overlapped joint
oxide sediment
packaging of waste
pai-loo
phosphate potential
polyvinyl ester
post-order traversal
precautions before welding
printer error
pygmy(pigmy)
reducible point
reducing transformator
Ribes glabrifolium
riparias riparias
rubricked
salt hay
sandwoods
semiwhite glass
servoboard
shockresistance
soft shaft
stokian wave
stuck
successive displacement method
system of astronomical constants
tablet and ticket block system
theonsky
thixotropic liquid
throw away hob
transmission and disttrbution
tropotactic
two-tailed exponential distribution
underclassers
underdosed
Velké Karlovice
Vivi, Ozero
voluntary winding up
waiting position
winter swimmers
work nights
zone of maximum precipitation