[网络] 四面体

Broadcast: Jan 29, 2003 By Paul Thompson VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we tell about a space rock that

发表于:2018-12-07 / 阅读(205) / 评论(0) 分类 VOA2003(上)-科技导航

EXPLORATIONS - The Year in Space By Paul Thompson Broadcast: Wednesday, December 29, 2004 VOICE ONE: I'm Faith Lapidus. VOICE TWO: And I'm Steve Ember with the VOA Special English program EXPLORATIONS

发表于:2018-12-15 / 阅读(199) / 评论(0) 分类 Explorations

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(232) / 评论(0) 分类 Scientific American(一)月

Broadcast: June 4, 2003 By Paul Thompson VOICE ONE: This is Ray Freeman. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today, we tell about how astronauts prepa

发表于:2019-01-02 / 阅读(292) / 评论(0) 分类 VOA2003(上)-科技导航

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(218) / 评论(0) 分类 医务英语

By Alex Villarreal Washington 25 October 2007 The U.S. space shuttle Discovery has docked at the International Space Station, marking the next phase in a complex mission to expand the international orbiter. VOA's Alex Villarreal reports from Washingt

发表于:2019-01-31 / 阅读(200) / 评论(0) 分类 2007年VOA常速英语(十月)

BEIJING, Sept. 6 (Xinhuanet) -- The amount of space junks floating in Earth's orbit has reached a critical level, warned scientists. The future space missions may become too dangerous to fly for a risk of colliding with space junks, said a report rel

发表于:2019-02-03 / 阅读(144) / 评论(0) 分类 英语新闻

BEIJING, Sept. 2 (Xinhuanet) -- The amount of space junk orbiting the Earth could cause fatal leaks in spaceships or destroy valuable satellites, according to a report released by the U.S. National Research Council. Computer models have shown that th

发表于:2019-02-05 / 阅读(176) / 评论(0) 分类 英语新闻

MOSCOW, April 22 (Xinhua) -- The Russian Space Forces has re-established contact with a military satellite, Geo-IK-2, which went missing in February, local media reported Friday. According to a spokesman from the Defense Ministry(国防部) , Interfa

发表于:2019-02-08 / 阅读(192) / 评论(0) 分类 英语新闻

Working in Project Space One of the givens in David Allens Getting Things Done is that you cant do a project. Instead, Allen recommends you break projects down into immediate next actions, discrete doable chunks that can be cranked through with a min

发表于:2019-02-08 / 阅读(244) / 评论(0) 分类 阅读空间

Crews at the Kennedy Space Center in Florida are preparing the Space Shuttle Discovery for its final launch, scheduled for Thursday. Among the things it will carry to the International Space Station will be a humanlike robot designed to help astronau

发表于:2019-02-08 / 阅读(276) / 评论(0) 分类 英语新闻

BEIJING, June 16 (Xinhua) -- The successful launch of China's fourth manned spaceship paves the way for a future space station, which might subsequently benefits the world in space exploration. Shenzhou-9 spacecraft, carrying two males and one female

发表于:2019-02-08 / 阅读(165) / 评论(0) 分类 英语新闻

BEIJING, Sept. 21 (Xinhuanet) -- China will launch an unmanned module next week, paving the way for a planned space station, a spokesman for the space program said on Tuesday. Tiangong-1, or Heavenly Palace 1, will blast off from Jiuquan Satellite La

发表于:2019-02-08 / 阅读(169) / 评论(0) 分类 英语新闻

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(244) / 评论(0) 分类 万物简史

The U.S. space shuttle(航天飞机) Discovery has completed its work at the International Space Station on its 39th and final mission, and is preparing for Wednesday's scheduled landing at the Kennedy Space Center in Florida. The shuttle success

发表于:2019-02-17 / 阅读(198) / 评论(0) 分类 英语新闻

This Friday, the U.S. space shuttle Endeavor is scheduled to lift off on its last voyage(航行) to the orbiting International Space Station. And on June 28, barring any last minute complications, Alantis will become the last space shuttle ever t

发表于:2019-02-18 / 阅读(178) / 评论(0) 分类 英语新闻

MOSCOW, Oct. 24 (Xinhua) -- The Russian Space Agency Roscosmos confirmed on Monday the list of next crew members who will fly to the International Space Station (ISS) on Nov. 14. Russia's Soyuz TMA-22 spacecraft will bring Russian cosmonauts Anton Sh

发表于:2019-02-18 / 阅读(286) / 评论(0) 分类 英语新闻

BEIJING, Nov. 13 (Xinhua) -- China has established an operation committee for management of the country's first space lab module, Tiangong-1, during its two-year orbit of earth. The committee will deal with operations planning, technical appraisal an

发表于:2019-02-18 / 阅读(185) / 评论(0) 分类 英语新闻

BEIJING, Nov. 3 (Xinhua) -- Two Chinese spacecraft accomplished the country's first space docking procedure early Thursday, silently coupling in space more than 343 km above Earth's surface. Nearly two days after it was launched, the unmanned spacecr

发表于:2019-02-18 / 阅读(181) / 评论(0) 分类 英语新闻

JIUQUAN, June 16 (Xinhua) -- She is a wife. She belongs to China's one-child generation. On Saturday, 33-year-old Liu Yang becomes the country's first woman entering space. The home-grown Shenzhou-9 spacecraft, atop an upgraded Long March-2F carrier

发表于:2019-02-19 / 阅读(196) / 评论(0) 分类 英语新闻
学英语单词
a dog and pony show
abishur mt.
abrupt change of cross section
Allaben
amphiumids
archmagi
argonautidaes
armature relay
atrichadenotecnum tayal
Autopiler
Axenfeld syndrome
barratrous
base deficit
be disappointed in
binding layer
binding ledger
bindon
biosparitic calcirudite
block of stamps
Boerlagiodendron
bond broker
boring unit
briding
cab heater rheostat
cambric-insulated wire
circular collider
claremont isles
consignments
corporate privity
countercharges
cutaneal
daily run
debenture account
deenergized state
Deuteronomistic
disincarcerates
dynamic routing protocol
emmetrope
euchymous
federal reserve advisory council
floor men
general service compressed air system
greaseboard
Haba Oukdour
headspace gas analysis
hex socket head
hypostress
IMNSHO
Ishidoriya
jugulation
keronigritite
key dollar
leakage halo
list broker
Mainstee evaporator
Malolo
Mericourt
minnie bush
moehringia mucosas
moonjah
moose nuckles
nimue
nivometre
nuclear cloud
pacambocythere semifacta
pachyderma circumscripta
palpicil
panalpina
phenylboronic
phonographies
pilot fault list
pole ampere-turns
psychopathia chirurgicalis
remote-control valve
rhytidosis
right pedal
rosazza
sea land system
selsyn differential
setting drawing
share of investment
share tenant
shoulder weapon
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sodawater
stepless voltage regulator
stored-up
strychnized
sulfide blackening
synergistic agent
tada
tight spiral
track annealing
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turn over number
wave energy of sea floor
well-head
Willoughby, C.
wolfcoats
worked toward
yttrium iodide
zinterol