平均轨道半径

Space Crew to Enjoy Thanksgiving Feast in Orbit The three crew members on the International Space Station plan to have their own Thanksgiving feast on Thursday as they orbit 352 kilometers above the earth. The lone American on board plans to share so

发表于:2019-01-06 / 阅读(63) / 评论(0) 分类 VOA标准英语2011年(十一月)

KUALA LUMPUR, March 24 (Xinhua) -- New analysis of satellite data suggested that missing Malaysia Airlines Flight MH370 had crashed in the southern Indian Ocean, Malaysian Prime Minister Najib Razak said on Monday. Najib released the sad news at a ha

发表于:2019-01-07 / 阅读(131) / 评论(0) 分类 英语新闻

Japan's Transportation Ministry has imposed a no-fly zone over a 20-mile radius around the badly damaged Fukushima Daiichi nuclear plant. A military spokesman says the fears of more radioactive particles leaking from the complex after a fire in three

发表于:2019-01-08 / 阅读(70) / 评论(0) 分类 2011年NPR美国国家公共电台3月

The Herdwick Shepherd, James Rebanks, is the latest of several generations to have tended flocks in the Lake District, but he now has a book and 45,000 Twitter followers entranced by the starkly beautiful scenes he photographs every day. Here he expl

发表于:2019-01-08 / 阅读(101) / 评论(0) 分类 英美文化

Moon 月球 Do you have any idea how big the moon is? 你知道月球有多大吗? The moon's radius is 1737 kilometers. 月球的半径长1737千米。 This is just one fourth of our Earth. 它的半径仅仅是地球半径的四分之一。 The d

发表于:2019-01-10 / 阅读(81) / 评论(0) 分类 与美国小学生一起学英文第4册

China's first cargo spacecraft has refueled the Tiangong-2 space lab in orbit for the first time. Tianzhou-1, which was launched April 20th from Wenchang Space Launch Center in south China's Hainan Province, successfully completed an automated dockin

发表于:2019-01-19 / 阅读(115) / 评论(0) 分类 2017CRI中国国际广播电台

Hours after Tiangong-2 was successfully launched, the space lab conducted its first transfer of orbit at 2:45 am Beijing time on Friday morning. In the meantime, it has also started in-orbit tests, which are a series of examinations on the functions

发表于:2019-01-19 / 阅读(82) / 评论(0) 分类 2016CRI中国国际广播电台

Like a Porsche 像保时捷那样 Jef Raskin's vision for the Macintosh was that it would be like a boxy carry-on suitcase, 杰夫拉斯金设想中的麦金塔电脑就像一只四四方方的手提箱, which would be closed by flipping up the key

发表于:2019-01-22 / 阅读(80) / 评论(0) 分类 乔布斯传

HARI SREENIVASAN: As we reported yesterday, the nation's largest egg-producing state, Iowa, has declared a state of emergency following a major outbreak of the avian flu. Millions of chickens and turkeys there and in Wisconsin and Minnesota have been

发表于:2019-01-27 / 阅读(77) / 评论(0) 分类 PBS访谈健康系列

The Herdwick Shepherd, James Rebanks, is the latest of several generations to have tended flocks in the Lake District, but he now has a book and 45,000 Twitter followers entranced by the starkly beautiful scenes he photographs every day. Here he expl

发表于:2019-02-04 / 阅读(88) / 评论(0) 分类 阅读空间

LONDON, May 11 (Xinhua) -- A controversial steel tower was unveiled in the Olympic park of London on Friday, about two and a half months before opening of the Games, which was hoped to become of a new icon of the city and bring more visitors. The tow

发表于:2019-02-05 / 阅读(67) / 评论(0) 分类 英语新闻

The U.S. space agency NASAs Messenger probe(正直的,廉洁的 ) is scheduled to reach Mercury later this week, and become the first spacecraft to orbit the planet closest to the sun. During Messengers year-long orbital mission, scientists exp

发表于:2019-02-05 / 阅读(78) / 评论(0) 分类 英语新闻

The U.S. space probe MESSENGER is poised to enter orbit around Mercury(水银) early Friday, Universal time, capping a nearly seven-year journey to the solar systems innermost planet. Scientists with the U.S. space agency, NASA, hope the orbiting

发表于:2019-02-05 / 阅读(73) / 评论(0) 分类 英语新闻

WASHINGTON, Jan. 1 (Xinhua) -- Twin U.S. spacecraft to study the moon from crust to core put themselves into the lunar orbit on New Year's Eve and New Year's Day, the country's space agency said. The second Gravity Recovery And Interior Laboratory, o

发表于:2019-02-05 / 阅读(95) / 评论(0) 分类 英语新闻

BEIJING, Jan. 25 (Xinhua) -- China has set a goal of equipping at least half of the country's county-level administrative regions to monitor various contaminants and harmful ingredients in food by the end of 2013. A new work plan, released on Friday

发表于:2019-02-06 / 阅读(93) / 评论(0) 分类 英语新闻

The World Health Organization (WHO) warns against the indiscriminate(任意的无差别的) use of potassium iodide as a precaution against nuclear radiation. WHO is issuing this advisory following reports of people in Japan and elsewhere who are usi

发表于:2019-02-06 / 阅读(243) / 评论(0) 分类 英语新闻

谷歌收购无人机公司 In its latest purchase of high-tech companies, Google has acquired a manufacturer of solar-powered drones that can stay in the air almost indefinitely, relaying broadband Internet connection to remote areas. It is seen as

发表于:2019-02-06 / 阅读(67) / 评论(0) 分类 英语新闻

1.Euro zone's top officials executively have talked for a whole week for new bailout programme for Greece to be worked out . Under the deal reached Monday, Greece must take measures to reform its economy inorder to find negotiations on the third mult

发表于:2019-02-11 / 阅读(121) / 评论(0) 分类 美联社新闻一分钟2015(七)月

Apple resisted licensing out the Macintosh operating system until 1994, 苹果一直拒绝把麦金塔的操作系统授权出去,直到1994年, when CEO Michael Spindler allowed two small companies, Power Computing and Radius, to make Macintosh

发表于:2019-02-15 / 阅读(86) / 评论(0) 分类 乔布斯传

Beijing expects to implement the pre-commercial service of the 5th generation mobile networks, or 5G, in key locations by 2020, according to a development plan on big data and cloud computing released by the municipal government. 北京市政府近日发

发表于:2019-02-18 / 阅读(102) / 评论(0) 分类 英语新闻
学英语单词
acrocarpous
akee
alpamayo
alternate member
atomizing damper
bank reconciliation statement
boreah
bought sold journal
cabtyre cord
carotids
chinlon safety belt
cis-trans isomer
Clever-Clogs
cohesion energy density
controllable diffraction grating
cooperative adsorption
cord dorsum potential
covered sweets
ctf
daoists
Darbatta
Darwinism
desobligeant
diffusion coefficient for particle number density
dispossessors
dissolution
double dots
drum timing pulse
duledges
Echinorhynchus moniliformis
Eleocharis acicularis
equation of state of real gas
ethnic-cleansing
European Space Data Center
fixators
frontolysis
genus Capsella
Grass Creek
Harriet Elizabeth Beecher Stowe
hiyashi
hypercorticoioism
individual exchange participant
interference signal
interframe coding technique
International Institute for the Unification of Private Law
iWar
kollmann
lace-curtain
lemur rubriventer
link performance
lysianassoid
masersats
minimum radius of curb clearance circle
mostlings
Myobactiviirus
non harmonic oscillation
nonorange
object set
obligate thermophilic bacterium
omious
partitioned project
pattisons
photinia serratifolia ardisiifolia
pore-canal system
Posets, Pico
postindexed, postindexing
public-address systems
quadratus femoris
quodlibetic
redomicile
reinforcement filler
rock slotter
rye terms sound delivery
schmalenbach
scouting distance
secondary status
selfthinning
serica opacithorax
shionol
slip flask mould
spaed
spiroes
spurnest
straddle root
subject-oriented
sun-and-planet
supplementary illumination
tainters
take from alongside
thallium pentasulfide
the bright lights
three pole breaker
tin-free bronze
towing link
travelling furnace
triaxial test apparatus
Tuzla Burnu
unconformability
underwater navigational beacon
undrunken
winning strategy
Zinn ion source