轨道机动系统

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(100) / 评论(0) 分类 2014年VOA慢速英语(十)月

Robots Branch Out Across Workforce Industrial robots started replacing humans long ago in tedious and dangerous jobs, such as welding thousands of identical parts for vehicles. Today, more sophisticated robots are capable of precisely lifting and mov

发表于:2018-12-16 / 阅读(106) / 评论(0) 分类 VOA标准英语2016年(七月)

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(75) / 评论(0) 分类 VOA标准英语2014年(十一月)

40 years later, aero experts coined the term transonic. 40年后空气动力学专家创造了跨音速这个术语。 They debated, should it have one S or two? 他们争论这个术语应该用一个S,还是两个S? You see, they were having trou

发表于:2018-12-18 / 阅读(100) / 评论(0) 分类 TED演讲科技篇

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(96) / 评论(0) 分类 VOA双语新闻 2014年10月

军争篇 NO.2: 故军争为利,军争为危。 举军而争利则不及,委军而争利则辎重捐。 是故卷甲而趋,日夜不处,倍道兼行,百里而争利,则擒三军将, 劲者先,疲者后,其法十一而至; 五十里

发表于:2018-12-29 / 阅读(79) / 评论(0) 分类 孙子兵法

军争篇 NO.1: 孙子说:凡用兵之法,将受命于君,合军聚众,交和而舍,莫难于军争。 军争之难者,以迂为直,以患为利。 故迂其途而诱之以利,后人发,先人至,此知迂直之计者也。 这句

发表于:2018-12-29 / 阅读(94) / 评论(0) 分类 孙子兵法

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(235) / 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(123) / 评论(0) 分类 英语新闻

Annan Unclear About US Participation in UN Meeting on Iraq Peter Heinlein U.N. Secretary-General Kofi Annan says he expects senior U.S. officials to come to New York this month for talks on Iraq. Lead

发表于:2019-01-11 / 阅读(109) / 评论(0) 分类 VOA2004(上)--各类新闻

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(155) / 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(122) / 评论(0) 分类 VOA标准英语2012年(一月)

Turkish Elections Marred by Sex Scandal The Turkish general election has become known as the campaign of Sex, Lies and Videotape. The reaction to the release on the Internet of explicit sex videos appearing to implicate senior members of the National

发表于:2019-01-14 / 阅读(149) / 评论(0) 分类 VOA标准英语2011年(六月)

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(103) / 评论(0) 分类 VOA标准英语2014年(十月)

With Vladimir's conversion and marriage to the Byzantine emperor's sister, 通过弗拉米尔的转变,还有他和拜占庭皇妹的联姻 as well as continued trade along the Volga route, the relationship between the two civilizations deepened. 以

发表于:2019-01-17 / 阅读(180) / 评论(0) 分类 TED演讲教育篇

Some days are simply worse than others. A day can turn especially bad when you just feel as if youre not good enough for anyone or anything. In other words, just not good enough. Here are a few things to remember when those feelings come around. 有些

发表于:2019-01-17 / 阅读(90) / 评论(0) 分类 阅读空间

And sprezzatura is the art that conceals art. sprezzatura. 是那种浑然天成的艺术。 It makes things look effortless. 它使得事物简约易懂。 You don't think about how Nicole Kidman is maneuvering that dress she just looks completely n

发表于:2019-01-18 / 阅读(121) / 评论(0) 分类 TED演讲娱乐篇

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(112) / 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(219) / 评论(0) 分类 2006年VOA标准英语(七月)

Most of us look away when we pass strangers. It is the expectional person who stops to help the woman maneuvering her kids and groceries up the staircase. We rarely give up in line or on the subway or bus. Locked into our automobiles, we prefer gridl

发表于:2019-02-09 / 阅读(136) / 评论(0) 分类 阅读空间
学英语单词
a good scout
acceptance market
Acer oliverianum
agenesis of testis
air line system
annual amount
answering machines
anti-reserve rotation device
attraction cone
biker bitch
binder flour
bolshevizes
bowlegged
bread winner
cam action reel
Campbells Bay
canting installation of rail
Catherine of Alexandria, Saint
cectorial structure
chemical polishing agent
climax order
come short of
condela
congenital absence of external auditory meatus
Corylopsis platypetala
cramping table
dishelmed
emotiveness
employment preference
englamour
equal gain combiner
farrania (drepanopsis) frigida
fixed drilling platform
free radical
gizmos
gravitational treatment
ground water elevation
hardpans
hele shaw pump
Helmholtz reciprocity theorem
high-temperature behaviour
hindcasted
hitherto-unknown
Huatong
hussies
impactionization avalanche
implementation planning and control technique
in aid of
information displays automatic drafting system
iron claw
Isibaki
isoboson
johnn
joint allowance
kristjan
langemarcks
lateral groove
layout section
lubricating oil supply linkage
mallemucks
marhama
Megaw
mode stop
model of propellant
Nikofezon
nondialup
nondigit
over-indebtedness
picksy
pliatzky
polycarbonate (pc)
pour the baby out with the bath -water
pragmatic consideration
prizefight
Ramponio
reactivity thrombocytosis
repetitive type electronic analogue computer
revelled
revenue loss
Scandinavian legal realism
schussboom
squaretails
Stirling's modification of Gram's stain
taguas
tall pawn
telemetry control
teotihuacn
thermal flow
transition navigation keys
trichromatia
TSEE
uniform wear
union rule of functional dependencies
United States waters
unrecognizable character
vacuum-operated clutch
various forms
wadding stock
Wernberg-Köblitz
White Panther Party
working preventer
zoonitic