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With the manuscript as a starting point, Wayne used a combination of engineering theory and trial and error to come up with a working model.

发表于:2018-12-07 / 阅读(94) / 评论(0) 分类 中世纪攻城战

Broadcast: May 10, 2003 By Cynthia Kirk This is the VOA Special English program, In the News. Investigators say they now believe they know what caused the American space shuttle Columbia to break apar

发表于:2018-12-07 / 阅读(75) / 评论(0) 分类 VOA2003(上)-科技导航

文本: Mr.Freeze:Please,find Nora.She is all I have left.It's over.That was all I could _(1)_. Batman:Harley Quinn took it. Mr.Freeze:Then what are you waiting for? Go and get it back.The clown must pay for what he has done to us. Batman:___(2)___

发表于:2018-12-28 / 阅读(49) / 评论(0) 分类 小龟乐游记英语短文

Broadcast: Mar 15, 2003 The U.S. space agency NASA is getting ready to resume shuttle flights as early as September or October. But the return to flight depends on whether the cause of the shuttle Col

发表于:2019-01-03 / 阅读(135) / 评论(0) 分类 VOA2003(上)-科技先知

Broadcast: Feb 07, 2003 U.S. space agency officials confirmed Friday that they are analyzing military photographs that appear to show damage to the space shuttle Columbia shortly before it disintegrat

发表于:2019-01-03 / 阅读(95) / 评论(0) 分类 VOA2003(上)-科技先知

本集简介: 乔伊为卫生机构的海报当模特,后来方知那是治疗性病的广告。 罗斯发现苏珊在为卡萝肚里的孩子念书听,不甘示弱决定照做。 因父母外出,罗斯和莫妮卡开始准备自己的感恩节大

发表于:2019-01-05 / 阅读(55) / 评论(0) 分类 老友记(六人行)

WASHINGTON President Barack Obama has started initiatives to study the brain and gene-based diseases. He has led attacks on the Ebola virus and antibiotic resistance. Last month, he wrote an academic article in a prominent medical journal. 华盛顿美

发表于:2019-01-07 / 阅读(56) / 评论(0) 分类 英语新闻

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. They say that the best offense is a good defense. And the best defense might be the most offensive. Take, for example, the barfing caterpillars of the be

发表于:2019-01-08 / 阅读(103) / 评论(0) 分类 Scientific American(十一)月

AS IT IS 2016-03-10 North Korea Says It Has Small Nuclear Weapon 朝鲜称其拥有小型核武器 North Korean leader Kim Jong Un said Wednesday his country has developed nuclear weapons of a size small enough for a ballistic missile. This is the fi

发表于:2019-01-12 / 阅读(62) / 评论(0) 分类 2016年VOA慢速英语(三)月

-Sheldon:Leonard, excellent. I want to show you something. excellent:太好了 Leonard太好了,我想让你看点东西。 -Leonard:Can it wait? I need to talk to you. 能等一会吗,我们得谈谈。 -Sheldon:Just look. I've designed

发表于:2019-01-28 / 阅读(186) / 评论(0) 分类 生活大爆炸第一季

Lesson - 8 1. The patient has been ______ of the safety of operation . A. assured B. guaranteed C. entrusted D. confirmed patience 耐心,耐性 patient 病人 operation 手术,操作 assure 保证,

发表于:2019-02-01 / 阅读(50) / 评论(0) 分类 考研英语

WASHINGTON, May 30 (Xinhua) -- After nearly 12 days together in orbit, U.S. space shuttle Endeavour(奋进号) undocked from the International Space Station on Sunday night, NASA announced on Monday. According to NASA, the undocking took place at 11:

发表于:2019-02-02 / 阅读(104) / 评论(0) 分类 英语新闻

WASHINGTON, July 10 (Xinhua) -- U.S. space shuttle Atlantis docked with the International Space Station on Sunday morning after nearly two days of flight. Commander Christopher Ferguson guided space shuttle Atlantis to a docking with the station at 1

发表于:2019-02-08 / 阅读(64) / 评论(0) 分类 英语新闻

WASHINGTON, July 8 (Xinhua) -- U.S. President Barack Obama on Friday hailed space shuttle Atlantis' final flight in NASA's shuttle program, saying Americans across the country watched with pride as America reached for the heavens once more. Obama exp

发表于:2019-02-09 / 阅读(106) / 评论(0) 分类 英语新闻

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(80) / 评论(0) 分类 英语新闻

As crew members of the upcoming NASA space shuttle mission prepare for the final flight of the shuttle program, they say they are inspired by NASA's accomplishments, but also about the retirement of the shuttle fleet and lay-offs among the NASA commu

发表于:2019-02-18 / 阅读(54) / 评论(0) 分类 英语新闻

The space shuttle Endeavour has returned to Earth for the final time, after completing a 16-day mission to the International Space Station. NASA welcomed home the Endeavour shuttle before dawn Wednesday, after the ship glided in from a safe re-entry

发表于:2019-02-18 / 阅读(88) / 评论(0) 分类 英语新闻

MOSCOW, July 10 (Xinhua) -- Moscow guarantees that the conclusions of its expertise conducted over use of chemical weapons in Syria are correct, Russian Foreign Minister Sergei Lavrov said Wednesday. We guarantee that the trials were taken by the exp

发表于:2019-02-18 / 阅读(58) / 评论(0) 分类 英语新闻

WASHINGTON, March 9 (Xinhua) -- U.S. space shuttle Discovery landed safely at the Kennedy Space Center in Florida on Wednesday, ending its nearly 27-year flying career as the world's most- traveled spaceship(宇宙飞船). According to NASA, Disc

发表于:2019-02-18 / 阅读(76) / 评论(0) 分类 英语新闻

Recent discoveries in New World archaeology along with newscientific methods for analyzing data have led to new ideas regarding theorigin of the first peoples of the Americas and their time of arrival. 新大陆考古发现和新的科学方法 The t

发表于:2019-03-11 / 阅读(169) / 评论(0) 分类 GRE英语
学英语单词
adiabatic-efficiency
aidoneuss
alan turings
alder (alnus)
alternative condition
amol
analytically complete domain
Aspie
banalising
Bard of Avon, the
bathing suit
Bobette
burniaux
calculation formula
clear-mindeds
coefficients for internal conversion
cold reduction department
colporrhoea
columnar journal
comprehensive transport
coumarin-4
court of judiciary
Cymbopogon iwarancusa
CYP27
dangling bond band
decapsulated
deck and engine abstract logs
defensive quality
eicosenoic acid
electric bolt heater
epidemiological reconnaissance
European pasqueflower
fluorochemical
foreign trade position
front drop
gloeosporium citricolum massee
ground-effect machines
gunderson
hard flour
heater block
hide (or skin)
hilling bottom
hog finishing house
humanicides
interrogation field
irresponsively
jolt squeeze moulding machine
keep on truckin'
kick-step
kinetic energy of system
l.d.l.
labiomental area
litmocydin
macrosegregation
make things worse
mambretti
mechanical hazard
mechanics of system
merogamy (meisen-heimer 1921)
Microrhiny
molecular size
moraines
nuclear bohr magneton
offslip
Pennisetum ruppelii
perennations
photo-electron-stabilized-photicon
pliolite
post-ginning cleaner
ramus of lower jaw
ray transfer matrix
Relationship Between Vessels
rerecorded disc
rockpiles
safety deposit box
San Donato di Ninea
saopron
school of fish
sensibilisin
Seven sheets to the wind
sheathed shielded cable
simple markov process
soft-shells
soil redeposition
Stauropsis
stream contamination of wind tunnel
streamline operration
support blade
sync-in pulse
take a horn
thiirane
toll facilities
trihydrol
triple buff
tubing centrilizer
tunne
UFD
variation constant
voguing
wrong numbers
zelenko
Ziboul