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
a pile
adhering moulding meterial
aegyptii
al jadida
all-wielding
aptitude strategy
argillous
arrange in rows along the taproot
Bandakagni-Sokoura
battle honour
Brahma Vihara
Brown-Boveri test
buckos
Buldana
civilian technician
communication attached
confined mixing
conjunctivodacryocystorhinostomy
curfuffle
Damscheid
Diagbalo
dicots
differential thermal solarimeter
downglides
drag bushing
eligma narcissus
erectify
extensive interpretation
file structure abbreviation
flat-lock stitch
frequency reuse
Gaelic
griller
groundwater gradient
habendums
hammer ram
handler I/O initiation section
hard anodizing
hematotrachelos
high-speed multiply
hyperproduce
imidecyl iodine
incompletae
interrupt driven system
isotopic actibation cross section
juristal act of real right
knifeproof
lepas anatifera
lingualizes
lophine lorentz-lorenz equation
microtiters
MUD, object-oriented
multiple rotation instruction
multisection quarter-wave transformer
mygs
net floor area
nongynecological
one-acre
order of discharge
orthopinacoid
overflow discharge
Pasach
Patquia
pensioner
percivall
pickled fish in wine
pinhole lens
polyandrogyny
posi-tion
prayerbooks
programmable logic system
prohibited drugs
pure machine-aided translation
pusca
push-out case
Pyogan
quasi-stable distribution function
raise the embargo on
received luggage
refrigeration meat
retroarc basin
s'gad
saffrans
scabrose
scan symbol
scyllarides haanii
secondday
self protecting
self-adapting computer
single timing axis
songfulnesses
special-operations
specific thermal conductivity
spheroplast
stabilizing treatment
sterocilia
throw sb overboard
trunkmaker
tuned inert coil
unacceptable error rate
unclews
waterway planning