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Questions for NASA after Rocket Explosion 火箭爆炸后美国国家航空航天局面临的问题 Unmanned Antares rocket is seen exploding seconds after lift off from a commercial launch pad in this still image from NASA video at Wallops Island, V

发表于:2018-12-08 / 阅读(40) / 评论(0) 分类 2014年VOA慢速英语(十)月

Galactic Rotation 银河系自转 Astronomers calculate there is ten times more matter in our Milky Way galaxy than we can actually see. Discover how the orbital motions of stars in the galaxy reveal dark matter -- on today's Earth and Sky. JB: I'm Joel

发表于:2019-01-02 / 阅读(129) / 评论(0) 分类 (科普英语)Earth and Sky

美国私企飞船与空间站对接 WASHINGTON, Jan. 12 (Xinhua) -- A commercial spacecraft, operated by U.S. space company Orbital Sciences Corp., docked with the International Space Station (ISS) on Sunday morning on its first official cargo resup

发表于:2019-01-09 / 阅读(55) / 评论(0) 分类 英语新闻

SCIENCE IN THE NEWS - Space Junk Threatens Earths Orbital Environment JIM TEDDER: This is SCIENCE IN THE NEWS, in VOA Special English. Im Jim Tedder. KATHERINE COLE: And Im Katherine Cole. Today, we tell about an ever increasing number of objects in

发表于:2019-01-12 / 阅读(81) / 评论(0) 分类 2011年VOA慢速英语(九)月

Global Warming Could Delay Next Ice Age The next ice age could be delayed by tens of thousands of years due to excessive amounts of heat-trapping carbon dioxide in the atmosphere, which disrupts Earths natural cycle of warming and cooling, according

发表于:2019-01-13 / 阅读(58) / 评论(0) 分类 VOA标准英语2012年(一月)

The amount of debris orbiting the Earth has reached a tipping point for collisions, which would in turn generate more of the debris that threatens astronauts and satellites, according to a US study released on Thursday。 NASA needs a new strategic p

发表于:2019-01-30 / 阅读(47) / 评论(0) 分类 实用英语
学英语单词
adverse use
allemande left (right)
angeitides
angekoks
Arasemide
area of influence of extraction
berber carpet
bounty on importation
bust form
Changsangot
CHITONIDAE
Chulym
combined voltage and current transformer
compacted lift
countervailing tax
darcets alloy
deep sea floor geology
ding up
discriminative exchange rate
docking bridge's wing
dry-tensile test
established population
ethyl dichloroarsine
family Synodontidae
field-literal pair
finite changes
fire-extinguishing
full balanced rudder
Gerhard Gerhards
Godarville
have a bias towards
horizontal versification and integration
hosts files
hymenophyllaceaes
hypergeometric probability
immunohematopoietic
industrial chromatography
involute broach
Ivanishvili
kabalas
Knocking Hoe Nature Reserve
lateral process system
lathumycin
leave out in the cold
lily-pond
long shunt winding
made a clean sweep of
marine geomorphology
mechanical working
microwears
monobutylamine
monochrome super-twisted
mopishness
mule spinner's disease
narcissus alkaloid
ncnc
offences of threaten
Old Style
order on a bank
overexaggerated
peek-a-boo bra
pharynxes
phellodermal
photoreleases
piling works
point-like
pointed-end
polymer waterproof rolling materials
post-tectonic
pratten
precisians
pressure grouting
procedure systems
protasis
pseudopelletierine
rabbiteye
real expenditure
redistribution effect
resin starved region
resolution width
simple phobias
Slonsk
stereophotogrammeter
stock buyback
supervisual
sweep-stake
Sāqīya
Tainaro, Akra
talk therapist
thermic anti-cyclone
thinking ability
Todo-shima
tooth load
train pipe pressure gradient
tuberculum sellae (or tubercle of sella)
verticilliosis
writing-pads
Xylonest
YHBT
yurtas
zinc naphthenate