天蚕蛾总科

Our history and our culture have come about because a lot of ordinary people have done some really terrible jobs. And our traditional Christmas is no exception. However dreadful it's been, having to d

发表于:2018-12-07 / 阅读(293) / 评论(0) 分类 圣诞特辑

Words and Their Stories: Water Expressions Now, the VOA Special English program WORDS AND THEIR STORIES. Expressions about water are almost as common as water itself. But many of the expressions using water have unpleasant meanings. The expression to

发表于:2018-12-16 / 阅读(232) / 评论(0) 分类 2011年VOA慢速英语(五)月

GUY RAZ, HOST: It's the TED Radio Hour from NPR. I'm Guy Raz. And on the show today - ideas about transparency. So just think about your bosses for a second. (SOUNDBITE OF FILM, OFFICE SPACE) GARY COLE: (As Bill Lumbergh) I'm going to need you to go

发表于:2018-12-17 / 阅读(322) / 评论(0) 分类 2017年NPR美国国家公共电台12月

Fog Found on Saturn's Moon Titan A study in Astrophysical Journal Letters reveals that Titan may be home to the familiar atmospheric condition known as fog--but made out of methane. Karen Hopkin reports The northeast just had its first big snow of th

发表于:2019-01-02 / 阅读(326) / 评论(0) 分类 60秒科学

By Jessica Berman The U.S. space agency has released the first close-up pictures of Titan, Saturn's secretive, giant moon. Photos from the international Cassini spacecraft show the orbiting object shr

发表于:2019-01-03 / 阅读(273) / 评论(0) 分类 VOA2004(下)--健康科技

By David McAlary The U.S. Cassini spacecraft orbiting Saturn has found evidence that the giant planet's dazzling rings are decaying and may eventually be gone. And the rings are dirtier than thought,

发表于:2019-01-03 / 阅读(343) / 评论(0) 分类 VOA2004(下)--健康科技

By Paul Sisco Washington 19 March 2008 The planet Saturn has long fascinated astronomers because of its distinctive rings and multiple moons. NASA's Cassini spacecraft visited one of Saturn's moons last week, collecting samples, data and pictures of

发表于:2019-01-11 / 阅读(247) / 评论(0) 分类 VOA标准英语2008年(三月)

Everyone is familiar with the rings of Saturn. But what would you highlight if it were you sending back the postcards? Every tour itinerary has one main attraction. With Saturn, you just can't miss the rings. As imaging team leader for Cassini, Carol

发表于:2019-01-22 / 阅读(223) / 评论(0) 分类 自然百科2012年

And the icy grains on the Saturnian beaches are washed by passing traffic. When a moon comes by, it creates a wake just like a motor boat creates a wake that goes behind it. And I kind of imagine the ring particles doing an intricate cosmic dance aro

发表于:2019-01-22 / 阅读(242) / 评论(0) 分类 自然百科2012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(226) / 评论(0) 分类 自然百科2012年

We are interested in studying seasonal changes on Saturn, because of its extremes affected the rains. Already we know the sky was blue, when the northen hemisphere came out of the shadow and it's now turn sort of pinkish yellowish, hazy color, becaus

发表于:2019-01-22 / 阅读(254) / 评论(0) 分类 自然百科2012年

Heres the surprise entry into search for life, this little moon that youd expect to be pretty dead and dull, and coming out of the South Pole of it is a jet of water ice, all the things you need for life are there. Theres an energy source, theres a w

发表于:2019-01-22 / 阅读(252) / 评论(0) 分类 自然百科2012年

Cassini has solved the mystery of how at least one of Saturn rails' formed, and this may help solve the bigger mystery of life beyond Earth, * may be the hottest ticket in town, but don't overlook the heavy weight container for the titan lovemoon wit

发表于:2019-01-22 / 阅读(267) / 评论(0) 分类 自然百科2012年

Hopes and dreams of thousands of scientists and engineers are resting on the next few moments. Weve been to Saturn twice before with the voyager I and voyager II spacecraft. But rather than these quick Kodak moments, we want to take a nice long leisu

发表于:2019-01-22 / 阅读(240) / 评论(0) 分类 自然百科2012年

Saturn might be the second largest planet in the solar system, but like gas giant neighbor Jupiter, its a triumph of show over substance. Saturn, first of all is a big giant gas ball, actually its a big giant ball of fluid, and the outer parts of it

发表于:2019-01-22 / 阅读(229) / 评论(0) 分类 自然百科2012年

Imagine boarding a flight to Saturn, what would you need to know before traveling? The best ringside vantage points? The must-see moons? Think of this as your personal guide to the splendor of the Saturnian system. A wandering spot of light twice as

发表于:2019-01-22 / 阅读(250) / 评论(0) 分类 自然百科2012年

With Saturn's 62 known moons, Cassini finds itself in good company without of this world photo opportunity to make even a seething professional gasp. Saturn is the most photogenic planet in all the solar system, so I just, you know, I mean, you could

发表于:2019-01-22 / 阅读(272) / 评论(0) 分类 自然百科2012年

The Prime Meridian(本初子午线) here is the longitude, the mark on the ground, from which all great voyages are measured. This is the view back to our remarkable home planet/ that the first human out here can look forward to, a distant blue dot l

发表于:2019-01-22 / 阅读(246) / 评论(0) 分类 自然百科2012年

No planet beats Saturn for jaw-dropping beauty. Saturn is the most photogenic planet in all the solar system. Some of the pictures are to die for. But the postcards only tell part of the story. Beauty is only skin deep. It really is rolling and seeth

发表于:2019-02-02 / 阅读(260) / 评论(0) 分类 自然百科2012年

Employee-Management Relations Facing Business Challenges at Saturn Negotiating a Radically New Contract Richard LeFauve of General Motors and Donald Ephlin of the United Auto Workers (UAW) had been ad

发表于:2019-02-07 / 阅读(331) / 评论(0) 分类 实用英语
学英语单词
a matter of opinion
absolute scale of temperature
adipic acid diethyl ester
aksar
alovudine
antischolastic
anuss
apparent hardness
aquarellists
arguable
at a gift
bald-headed row
Ballesteros
barkings
bike-shop
bizzer
Bjerreby
bolster spring cap
bombogenesis
Burxdorf
canalized thrombus
class 1
coated charge
complex networks
cotter pin drill
D notice
Data Mart
deep-rooted crop
Degelatinated Deerhorn
denan (danan)
derringers
desiccated anterior pituitary
Dnestrovsc
drumlinized
emulsion side
enols
five-part counterpoint
Flores, Cachoeira das
fontevraults
gending
general-purpose cement
Gracillariidae
gravity suspended water
groundcherries
Guelfs
high moor
high technology ceramics
highway administration bureau
impulsions
indicating fuse
interversion
isogyres
JWIC
Kellerton
lapel microphone
large scale programming
leather coupling
leiren
loaded solvent
marttis
megalithic architecture
midtempo
milk molar
mill body
misaffection
motor factors
mudbox
n-th root of unity
national fundamental geographic information system
newcombes
non-castrated
nonsettleable
parachute spinnaker
Polygonaceae
porous tube
pulsemeter pump
pyramidal system
recirculation inlet
samonas
sandles
scunna
sereno
sillier
simple determination language
single graft seedling
Snell-Bagg mice
soil particle charge
spray paints
steel column
steering knuckle
Strachan
supersonic combustion ramjet (scramjet)
tank pipe
tape punching mechanism
tenant in possession
three-matches
Udi-Nsukka Plat.
vague convergence
vanillin acetate
ventilating machinary
whyn't
Yakouan