卫星轨道高度

LESSoN EIGHT TEXT Telecommunication via Satellite At the beginning of the twentieth century, there were four powerful means of transmitting and receiving information over long distances: print, photog

发表于:2018-12-01 / 阅读(146) / 评论(0) 分类 自考英语(一)78讲

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(62) / 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(41) / 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(59) / 评论(0) 分类 VOA双语新闻 2014年10月

A Stationary Satellite, part 2 A geostationary satellite orbitsthe planet at the same rate as the planet rotates, so the satellite is always over the same patch of ground. Cool! you say. Id like to have one of those about twenty feet over my house. S

发表于:2018-12-31 / 阅读(56) / 评论(0) 分类 英语听力文摘 English Digest

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(179) / 评论(0) 分类 (科普英语)Earth and Sky

Two pilots recently set a new altitude world record for gliders. A glider is an aircraft that does not have an engine. They are pulled into the air by powered airplanes and then released. They are designed to ride warm, rising air to gain altitude. T

发表于:2019-01-03 / 阅读(187) / 评论(0) 分类 2017年VOA慢速英语(九)月

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(87) / 评论(0) 分类 英语新闻

banaroo--Be my Satellite dam daba dam daba daba da daba da daba da daba da hear my s.o.s. dam daba dam daba daba da daba da daba da daba da hear my s.o.s. calling you calling you i need you today cause i lost my direction in the endless milky way eme

发表于:2019-01-11 / 阅读(94) / 评论(0) 分类 好听的英文歌曲

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(108) / 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(81) / 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(60) / 评论(0) 分类 VOA标准英语2014年(十月)

HAIKOU, Jan. 28 (Xinhua) -- China's aviation authorities(民航当局) on Friday started to allow helicopters to fly in low-altitude airspace over the tourist island of Hainan on a trial basis for the first time. The aim is to eventually open a part

发表于:2019-01-19 / 阅读(120) / 评论(0) 分类 英语新闻

SHENYANG, Aug. 23 (Xinhua) -- China will relax the ban on the use of low-altitude airspace across the country starting in 2013, the country's air traffic authorities said Thursday. A series of reforms will be implemented in five to ten years, creatin

发表于:2019-01-22 / 阅读(124) / 评论(0) 分类 英语新闻

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(72) / 评论(0) 分类 实用英语

XICHANG, Sichuan, June 21 (Xinhua) -- China successfully launched a new communication satellite, the Zhongxing-10, from its Xichang Satellite Launch Center in southwest Sichuan Province on early Tuesday. The satellite, carried by a Long March-3B rock

发表于:2019-02-07 / 阅读(88) / 评论(0) 分类 英语新闻

GUIDE, China, Jan. 12 (Xinhua) -- The 3rd International Extreme Race of Winter Swimming across Yellow River started here in northwest China's Qinghai Province on Saturday. Being hosted in Guide County at an altitude of 2,200 meters in Tibetan Plateau

发表于:2019-02-09 / 阅读(74) / 评论(0) 分类 英语新闻

MOSCOW, Nov. 25 (Xinhua) -- Russia's Proton-M carrier rocket was launched on Friday from the Baikonur space center in Kazakhstan with a Chinese communications satellite AsiaSat-7, according to Russia's Federal Space Agency Roscosmos. Roscosmos' live

发表于:2019-02-18 / 阅读(89) / 评论(0) 分类 英语新闻

XICHANG, Sichuan, July 12 (Xinhua) -- China blasted off a new data relay satellite Tianlian I-02 on Monday at the Xichang Satellite Launch Center in southwest Sichuan Province . The satellite was launched on a Long March-3C carrier rocket at 11:41 p.

发表于:2019-02-18 / 阅读(98) / 评论(0) 分类 英语新闻

Change altitude 改变高度 Rebecca had decided that her best chance of getting hired by a company doing geological survey work in the Alaskan wilderness was to earn a private license to fly twin-engine planes. 丽贝卡觉得,要想进入在阿拉斯

发表于:2019-03-15 / 阅读(187) / 评论(0) 分类 找谁倚靠(慢速)
学英语单词
abaiser
Akcakoyunlu
Ambrose
antipertussis sera
APORIDAE
appropriate cash supply for economic growth
banjosid
blowup
Brussels Stock Exchange
carbon tissue transfer machine
Cassagnes-Bégonhès
catalyst regeneration
category synonym
center-of-mass system
ceratopogonids
ch'i chu lang
chaenomeles fruit
chicken turtle
Chinese ephedra
cisco link services interface
clobenzorex
colour tubes
Cottage Grove
cruise clearance
dashboard oil thermometre
davallia clarkei
derivative securities
die-cast rotor winding
driving slot
electric furnace steel making
engineer's abstract
epidote-chlorite schist
equilibrium range
estacion
fantom antenna
fibre geometry
final forging temperature
four-high roller leveler
glynwed
Hexamidinum
idgia deusta
incostapedial
instance method
interferometer modes
ionized cluster beam
Ixeris japonica
kalama
Kaspi
lamp holder (base)
limbo
loader dozer
local illumination
lygophilia
maximum power
mechanical tilting-pan filter
medical artistic beauty
metanalysis
mill-coated pipe
monsoon circulation
Newspaper Advertising
non-degenerate symmetric bilinear form
normal impact
overlove
oxy-hydrogen cutting
palaeology
paradigmatic opposition
parser analysis
PBE
penetration load curve
pituophis melanoleucuss
polytopal
Pomeranians
procarbaxine
QRS vector
ready list as a queue
rear spring clip nut
recurrent frequency
Schaudinn's solution
seasons
sebold
secondary epithelization vestibuloplasty
self correction
set of pipes
shermantown
shotmaker
sound scanning device
sphaerulitic
static logic hazard
Stockertown
struckural gene
torulus tadilis
traction-band
trampolin
tray supporting
trichords
turn-on time
unbooks
upper state symbol
Viburnum laterale
Webbwood
zirconia whisker
zygal fissure