轨域简併

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(149) / 评论(0) 分类 2014年VOA慢速英语(十)月

Virgin Spaceship Crash Raises Questions 维珍宇宙飞船失事引发诸多问题 WASHINGTON Plans to fly tourists to the edge of space could be delayed after Friday's crash of Virgin Galactic's SpaceShipTwo during a manned test flight. It is the se

发表于:2018-12-16 / 阅读(128) / 评论(0) 分类 VOA标准英语2014年(十一月)

美国火箭爆炸,私营航天产业的挫折 Wednesday's successful launch of a Russian space vehicle taking supplies to the International Space Station was in sharp contrast to the explosion of a private U.S. cargo space craft shortly after it's

发表于:2018-12-19 / 阅读(151) / 评论(0) 分类 VOA双语新闻 2014年10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(297) / 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(174) / 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(208) / 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(173) / 评论(0) 分类 VOA标准英语2012年(一月)

With Failed Launch, US Private Space Industry Suffers Setback 火箭发射失败 美国私人航天受挫 Wednesday's successful launch of a Russian space vehicle taking supplies to the International Space Station was in sharp contrast to the explosi

发表于:2019-01-14 / 阅读(153) / 评论(0) 分类 VOA标准英语2014年(十月)

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(161) / 评论(0) 分类 实用英语

By David McAlary Washington 12 July 2006 Astronaut Mike Fossum (on arm)installs the International Space Station's railcar-like mobile transporter U.S. space shuttle astronauts are on their third spacewalk since Saturday, this time to practice method

发表于:2019-02-03 / 阅读(258) / 评论(0) 分类 2006年VOA标准英语(七月)
学英语单词
absolute measure
aeschynanthus
air loaded tension device
anticontraceptive
appendectomy instruments set
armature trickle impregnating machine
ashleigh
Astbury, John
backingoff
Bignonia capreolata
billowier
bluegum
cephalosporium gramineum nishikado et ikata
circle setting knob
Clift Lake
cold fix method
confirmed and irrevocable credit
Cornus ulotricha
cyclic stressing
cyprinuss
Daraprine
dating machine
deblaze
deflowered
detecting grating
dibelius
diplomatic envoy
dystrochrept
endomere
EOT (end of transmission)
euroization
extractum rhei compositum
family Bombyliidae
far-ultraviolet ray
female genital tuberculosis
fencamine
first-set
French chop
gravo-acute accent
highly finished
Horodnia
huo kuan yin
i-failed
infantilized
Inspector Poo-sow
irrigation before seeding
it looks as if...
jacobuss
Khosrow I
lead foil screen
limpas
liquor plumbi subacetatis fortis
Louise, L.
macrocrystalline texture
Malemba Nkulu
miassite
Millikan
moisture-free weight
mosaic printing
multi conductor plug
napkin erythema
natural transmission
neofetal
NUWEP
of bismuth butter
olive green
omnis cellula cellula
orthophosphatase
peer-review
Peristylus formosanus
Piedicorte di Gaggio
pitchering
polygon clipping
polyside
potassium sodium alloy
primitive circulation
propelling gate
regur soil
relief sprue
resolved resonance
routine procedure
single-stage separation factor
solid forged crankshaft
speed repeater
steering brake
stonebreaker
stretch-proof
subpyramidal fossae
syntax tree
telegraphically
ten o'clock
to speak the same language
transom brace
trouble jack
tube agglutination test
tversky
value-destruction
very hot
Vidfie
vplt (virtual path link termination)
waxy electrolyte battery
without kindness