[医] 牙导管

World's First Nuclear Fusion Reactor 50 Percent Complete At the Geneva Superpower Summit in November 1985, American President Ronald Reagan met with the Soviet Union's General Secretary Mikhail Gorbachev. 在1985年11月的日内瓦超级大国首脑会

发表于:2019-01-03 / 阅读(74) / 评论(0) 分类 2018年VOA慢速英语(一)月

Life feeling a bit ordinary? Travel choices a bit tame? Head beyond the asteroid belt for an out-of-this-world experience. Welcome to Jupiter, home of high-adrenaline adventure. Plunge into its mysterious depth. You drop through the clouds, it would

发表于:2019-01-08 / 阅读(68) / 评论(0) 分类 自然百科2012年

This giant gas bag is built from the flimsiest materials in the universe. But for all its squishy bulk, its a great little mover. Jupiter spins at such a breakneck speed that it bulges at the equator, so fast in fact that a day here lasts less than t

发表于:2019-01-08 / 阅读(65) / 评论(0) 分类 自然百科2012年

Jupiter is a planet that knows how to exert its influence on the solar system, and how to impress even the season traveler. You can fly around the earth in a jumbo jet in less than two days. Try this on Jumbo Jupiter and youll be in the air for three

发表于:2019-01-08 / 阅读(68) / 评论(0) 分类 自然百科2012年

When the space hardened Voyagers I and II flew past in 1979 on their way to the outer solar system, Jupiters great mysteries only deepened. How were these powerful magnetic storms generated inside a giant ball of gas? Why was one moon boiling with vo

发表于:2019-01-08 / 阅读(70) / 评论(0) 分类 自然百科2012年

If you are floating in a balloon, the center of the red spot might be rather calm. But you will be going fast, your balloon will be going faster than the hurricane winds, but it might be a smooth ride. This storm is a sigh to the halt, towering five

发表于:2019-01-08 / 阅读(66) / 评论(0) 分类 自然百科2012年

Picture a suicide dive into the mysterious depth? Relax, Galileo's already done it for you. We separated the probe from the Galileo mother ship. We were flying in toward Jupiter, basically a ballistic bullet. The Galileo probe went in at an unbelieva

发表于:2019-01-08 / 阅读(60) / 评论(0) 分类 自然百科2012年

This could be the most terrifying sight in the solar system: clear skies above a bottomless pit, an infernal drop into the depth of Jupiters endless sky. You may have raindrops evaporating into the hot interiors of Jupiter, but there is no ocean down

发表于:2019-01-08 / 阅读(67) / 评论(0) 分类 自然百科2012年

By Liu Enming Washington, DC 29 December 2006 watch Tiny Literary Giant After publishing her first book when she was only seven, Adora Svitak was dubbed a Tiny Literary Giant by Diane Sawyer of Good Morning America. For producer Liu Enming, Elaine L

发表于:2019-01-12 / 阅读(110) / 评论(0) 分类 2006年VOA标准英语(十二月)

In a landmark decision, a court in Australia has given a paralyzed man the right to die by allowing him to refuse food and water. Christian Rossiter has begged to be allowed to die after accidents left him a quadriplegic. Christian Rossiter has said

发表于:2019-01-14 / 阅读(63) / 评论(0) 分类 VOA标准英语2009年(八月)

A New Course At Arkansas Colleges: How To Not Get Pregnant KELLY MCEVERS, HOST: Most teen births in this country are actually to young adults - women who are 18 and 19-years-old. The highest rate is in Arkansas. It's a Bible Belt state that pushes ab

发表于:2019-01-17 / 阅读(97) / 评论(0) 分类 2016年NPR美国国家公共电台8月

One day we might develop the magnetic field technology necessary to keep a human alive within Jupiters radiation environment. But in the near future, our exploration will continue by machine. The robotic program isnt about robots. Its a profoundly hu

发表于:2019-01-22 / 阅读(77) / 评论(0) 分类 自然百科2012年

Every time we send aspacecraft to answer questions, we end up asking more. Clearly, a return to Jupiter isn't to stars. (Here we go.) In 2003, with fuel andpower running low, Galileo's 14-year odyssey was brought to an end,deliberately to ensure Euro

发表于:2019-01-22 / 阅读(68) / 评论(0) 分类 自然百科2012年

As these robot submarines accomplish great missions, the possibility of one day melting our way into Europas deep ocean is moving from fiction toward fact. Lets just imagine, there were on a little spacecraft with the capability to melt to the ice, w

发表于:2019-01-22 / 阅读(66) / 评论(0) 分类 自然百科2012年

If gravity measurement showed no solid core, then Jupiter formed early like the Sun, with a core then its birth came later when solid materials were created. By measuring water content, Juno should also reveal how hot the solar system was, when Jupit

发表于:2019-01-22 / 阅读(74) / 评论(0) 分类 自然百科2012年

Take a night flight, like Galileos, over the surface of Io and the view down to the churning lava lakes would be unforgettable. Imagine then a visit to the surface. The landscape might look quite a bit like a red and yellow sulfur-painted version of

发表于:2019-01-22 / 阅读(63) / 评论(0) 分类 自然百科2012年

Gas escaping into space from the plumes is energized by Jupiters magnetosphere, creating an intense band of ionizing radiation that bombards a surface already soaked in emissions. If you went out relatively unprotected with, like a normal spacesuit f

发表于:2019-01-22 / 阅读(87) / 评论(0) 分类 自然百科2012年

I would like to visit Jupiter one day,I think it would be a good place to take a vacation, but not on July of 1994. That would have been a terrible time. In July, 1994, the fragmented comet Shoemaker-Levy 9 that David helped / discover began its fa

发表于:2019-01-22 / 阅读(74) / 评论(0) 分类 自然百科2012年

When Galileo took a closer look at Europa, the picture changed. Europa is a fascinating object. If you imagine descending onto a world that looks every place like the frozen ways of the Arctic and the Antarctic, youll get a pretty good impression of

发表于:2019-01-22 / 阅读(68) / 评论(0) 分类 自然百科2012年

the processes that hit Io or operating on Europa as well, but on a less dramatic scale. and so was this constant change(s) in Jupiter's gravitational pull that is distorting the surface and that's generating heat in the interior. This is a clue to Eu

发表于:2019-01-22 / 阅读(72) / 评论(0) 分类 自然百科2012年
学英语单词
Analog Multimeters
ars moriendi
Balearics
be going places
Book-cooking
booster rail transporter
carbolfuchsin stain
Carex hirtelloides
cavity side
cigarette-lighters
circulation around circuit
conservation process
constrained yield point
Content of Ownership of Ship
coupled bus
desert plumes
distocclusolingual
dividend with a source in China
Droleleptan
earses
Edessene
elliptol
Ellis Pt.
empowers
equivalence of representations
eyefuls
F. S.
facing-attachment
fatigue strength at n cycles
faucial catheter
feastly
force pumps
Fruitland Park
gas-cleaning
glycopattern
grey mare
gullibly
high speed static pressure bearing
horizontal pincushion correction
humid farming
igniting plate
image-rejection
impulse discharge
infinityfold
intersegment
iron chrysolite
keep ones shirt on
Lebanon syndrome
lengths-to-diameter
lophodermium abietis rostrup
magniotriplite
melodized
microprojector
mind ... own business
mixed heteroscedasticity
Mmes
monoecious flower
mouth hooks
muckmiddens
multicast routing protocol
nominating convention
nose stroke
noxial
offer one's one's apologies
oltons
over-proof
pay dispute
Polpaico
prize-winners
probability product rule
raster unit
recording rights
Refsum's disease
required degree of subdivision
resource librarian
restricted anchorage
rotisserians
say it all
schenectady
short-time correlation
skanska
snake motion
solution transfer pump
sounds like
sphere of penetration
spur-winged
statements audit
storage of valuables
sub-paragraphs
sublethal gene
submatingale
surveys of attitudes
the greenhouse effect
transcendings
truckbeds
Udult
virus
waughs
wave velocity
Willisville
wodland
your bad