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Rho Ophiuchi dark cloud is one of the closest star-forming regions to our own solar system. Located near the constellations Scorpius and Ophiuchus, the nebula is about 407 light years away from Earth. The infrared astronomical satellite, now celebra

发表于:2018-12-05 / 阅读(62) / 评论(0) 分类 国家地理2008年

You know, I just wanna say one brief thing about something the previous speaker said. I didn't wanna spend too much time on that 'cause I don't think it's important enough. But one thing is worth considering. He's the -- He's the nominal head of an

发表于:2018-12-30 / 阅读(97) / 评论(0) 分类 名人演讲

By Doug Levine Washington 28 October 2006 Saxophonist Michael Lington became a fan of American jazz while growing up in his native Denmark. It was a passion so strong that he eventually settled down in the U.S. and launched a recording career. In a

发表于:2019-01-04 / 阅读(107) / 评论(0) 分类 2006年VOA标准英语(十月)

By Scott Bobb Johannesburg 03 December 2006 Madagascar President Marc Ravalomanana casts his ballot in Antananarivo, 3 Dec 2006 In Madagascar Sunday, voters were choosing a president in what observers say was a mostly peaceful process. Many analysts

发表于:2019-01-11 / 阅读(103) / 评论(0) 分类 2006年VOA标准英语(十二月)

By Michael Bowman Washington 06 August 2006 Secretary of State Condoleezza Rice says the United States is ready to assist Cuba in a transition to democracy, but is not attempting to foment unrest on the island while President Fidel Castro is ill. --

发表于:2019-01-11 / 阅读(91) / 评论(0) 分类 2006年VOA标准英语(八月)

Transcript for Reference Only --chunshan The infrared astronomical satellite, now celebrating its 25th anniversary, gave us the first all sky view of our dusty infrared universe. Floating above the galactic center is the Rho Ophiuchi Cloud, about 400

发表于:2019-02-26 / 阅读(147) / 评论(0) 分类 自然百科2008年
学英语单词
17-hydroxysteroid
abmodality
additional expense-war risk
akamushi disease
armature surface
asfas
asset-strippings
asthen-,astheno-
be aware of
be beyond someone's cognizance
bought by cash
broke to the wide
carry vessel
cell refernce
cephal-
colcemide
concentration span
coordinate system paper
court-bouillons
depeached
disc area
double pipe crystallizer
edss
energy-savings
error rate of a telegraph communication
ether resin
evergreen huckleberries
far-vision
flashdance
fried sliced chicken and chicken liver
gelseminine
Genprin
Gerbillinae
get sth ready
globular-chain crystal
glow stick
Goldstripe
Guayalejo, R.
induced module
inlet angle
Jaruco
kroehnkite (kr?hnkite)
La Trappe
Leveling-instrument
make its way
manganese(ii) iodide
melicera
motor-driven interrupter
mottley
newsradio
Ngomba
nicds
normal quantity
one millions millions millions
optical null method
organ-oriented
oxygen-based
panelboard
parfitly
Petit Rhône
pie-dogs
plow a lonely furrow
Podlesnoye
positive causal relationship
preserved fruits
processor basic instructions
rectification of contract
reeme
rock covered and uncovered
rounded out
scarlet kafirlily
self-fertilized
sequential control system
silt loam soil
simple solid
siuc-n
smooth function
snap-work
static flip-flop
sustained motor
sutura coronalis
switch insertion
technoutopians
tensile strength test
Tetrodotoxine
third-order leveling
thomae
tiens
timetables
to beat the Dutch
Traka
trypsinizations
Turpinia cochinchinensis
turret barbette
unblinding
unperturbably
unprincesslike
webjack
wolowitz
wood stave flume
woolridge
zvezdin