重复使用火箭发动机

This special edition of our show dives into an ocean of plastic, masses of waste accumulating on and around some remote islands in the Pacific. Synthetic plastic, the kind made by people, has been around since 1907, and scientists estimate that almos

发表于:2018-12-02 / 阅读(167) / 评论(0) 分类 CNN美国有线新闻2017年12月

NASA Successfully Tests Hypersonic 1 Jet Three years after its first test flight ended in an explosion, NASA on March 27 successfully launched an experimental jet that the agency believes reached a re

发表于:2018-12-05 / 阅读(131) / 评论(0) 分类 英语沙龙2004全年合辑下

Going up quickly, like a rocket Helen: Hello, this is Real English from BBC Learning English. Im Helen. Zo: 你好吗? 我是刘佳。 Helen: Today were going to look at words and phrases that have recently become part of the English language. Zo: 地道英语

发表于:2018-12-07 / 阅读(151) / 评论(0) 分类 地道英语在线听

听广告学英语:Mitsubishi GDI Engine三菱汽车引擎 Mitsubishi GDI 三菱汽车引擎 原文 It's the GDI, the engine technology of tomorrow is already being driven today. Mitsubishi's GDI engine produces more power, reduces fuel consumption, and emits less carb

发表于:2018-12-07 / 阅读(217) / 评论(0) 分类 听广告学英语

A new study into the hygiene of supermarkets has found that shopping carts are dirtier than the stores bathrooms. Microbiologist Dr Charles Gerba of the University of Arizona conducted research on the handles of 85 carts in four American states. He r

发表于:2018-12-07 / 阅读(215) / 评论(0) 分类 创新英语

Rocket man 火箭队队歌 - 电影《农民宇航员》结尾曲 演唱者:Elton John 《农民宇航员》,虽然是小成本电影,情节也很简单,但是很有感觉。尤其是最后的结尾曲,是对电影的一个总结,rocket m

发表于:2019-01-03 / 阅读(169) / 评论(0) 分类 英语金曲精听

VOICE ONE: This is Steve Ember. VOICE TWO: And this is Shirley Griffith with the VOA Special English program, EXPLORATIONS. Today, we report on some of the early research in the development of rockets

发表于:2019-01-07 / 阅读(164) / 评论(0) 分类 Explorations

EXPLORATIONS - How Robert Goddard Helped Lead America Into Space By Voice of America Broadcast: Wednesday, April 20, 2005 (MUSIC) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Shirley Griffit

发表于:2019-01-07 / 阅读(159) / 评论(0) 分类 Explorations

[ti:UNIT 8 Save Our World Lesson 58: Stop Pollution!] [0:00.317]UNIT 8 第八单元 [0:02.091]Save Our World 拯救地球 [0:04.878]Lesson 58: 第58课: [0:06.905]Stop Pollution! 禁止污染! [0:09.185]THINK ABOUT IT! [0:10.768]What can you do t

发表于:2019-01-09 / 阅读(216) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

Lesson 58: [00:03.40]Stop Pollution!In North America, [00:08.96]many students help their schools make less pollution. [00:14.73]They join environment clubs. [00:18.99]In a club,people do things together. [00:24.03]In an environment club,people work t

发表于:2019-01-09 / 阅读(240) / 评论(0) 分类 河北加拿大版初中英语

By Jim Randle Baghdad 13 September 2007 A U.S. general has accused Tehran of sending rockets to Shi'ite groups fighting Iraq's government and U.S. forces in Iraq. VOA's Jim Randle Reports from Baghdad. Gen. Kevin Bergner speaks to reporters in Baghda

发表于:2019-01-11 / 阅读(217) / 评论(0) 分类 2007年VOA标准英语(九月)

NASA Successfully Tests New Rocket Engine NASA最强火箭测试成功 火星之旅指日可待 The American space agency successfully tested a powerful new rocket engine this week in the desert of northern Utah. The rocket booster is meant to take a

发表于:2019-01-12 / 阅读(258) / 评论(0) 分类 2016年VOA慢速英语(七)月

Todd: Jonathan we are talking about conspiracy theories. What about the one where the sound? That when the rocket lands, they have actually audio of the rocket landing and you can't hear the rocket engine, and the rocket engine should be making a rea

发表于:2019-01-20 / 阅读(133) / 评论(0) 分类 原版英语对话1000个

The land-speed record 地面速度记录 How to build a 1,000mph car 怎样建造时速1000英里的汽车 Hybrid rocketry will be used to drive faster than ever before 混合火箭技术将用于更快地驱动车辆 May 5th 2011 | from the print ed

发表于:2019-01-26 / 阅读(129) / 评论(0) 分类 经济学人综合

18 物理学家、火箭专家戈达德罗伯特 DATE=3-21-01 TITLE=EXPLORATIONS #1944 - Robert Goddard BYLINE=Staff VOICE ONE: This is Steve Ember. VOICE TWO: And this is Shirley Griffith with the VO

发表于:2019-01-30 / 阅读(115) / 评论(0) 分类 文化聚焦

Science and technology 科学技术 Reusable spacecraft 可重复使用的航天器 Jet-set rocket-man 乘喷气式火箭的乘客 A small British firm is working on a nifty new jet-rocket hybrid engine 英国一家小公司正在研发一款轻巧的新

发表于:2019-02-05 / 阅读(119) / 评论(0) 分类 经济学人科技系列

BEIJING, Apirl 1 (Xinhuanet) -- An Ariane rocket launch of two communications satellites was aborted Wednesday after a technical hitch at the scheduled moment of liftoff in French Guiana on Wednesday. According to Arianespace, the Ariane 5 rocket's V

发表于:2019-02-06 / 阅读(165) / 评论(0) 分类 英语新闻

BEIJING, Oct. 18 (Xinhuanet) -- NASA recently unveiled its new rocket design, named Space Launch System (SLS), according to media reports. The rocket will make its first unmanned flight in 2017, and the flight with astronauts aboard won't happen unti

发表于:2019-02-13 / 阅读(135) / 评论(0) 分类 英语新闻

The environment of the city is getting worse and worse today. There are wastes, air pollution and so on. What can we do to save our city? About the wastes, we should sort the wastes, to see if they can be recycle used; use the reusable shopping bag i

发表于:2019-02-18 / 阅读(129) / 评论(0) 分类 英语作文

On the morning of July 16, 1969, Neil and his two fellow Apollo 11 crewmen rose at 4:15 A.M. They had steak and eggs for breakfast, the same breakfast all astronauts had before a flight. The night before a special visitor had arrived for dinner to wi

发表于:2019-02-21 / 阅读(130) / 评论(0) 分类 名人认知系列 Who Was
学英语单词
absorption of light
algirdas
allitol
aminomethylindole
Ampligram
astronomic(al) navigation
attenuation of combination
barladul (birlad)
Bertran De Born
betrims
bodywave
Bosc
Boundary Peak
cabin roof
Carex shanghangensis
chopped wound
cie cpac flt
clearance loading gage
clin.
confirms
conflux
current draw
cursor type IFP
cyrtarachne bufo
cysteine carboxypeptidase
deadlockings
die-up
dimu
effective mechanical power
electronic support measure (esm)
ethedine
ethyl laurate
faggotries
false alarm of fire
fuel feed control
fungus cultivation
Gadafism
give sb the axe
gold export and import
grab-ass
Guenther's oparation
hamiltonian problem
hear ye
hears of
heliski
hemogregarine
holostome
homogeneous membranes
horizontal social mobility
hugh dowdings
hurvitz
idolastre
iguassus
indiscerning
infrared fibre optics
keratoelastoidosis
ketab
keypoints
labour cost collecting sheet
lap roller
lecture-demonstration
lelande
lethalities
lullabylike
magnetic reading system
manner and gesture
mass hysteria
monadic indicant
morilton
mustelines
myoma laevicellulare
narri
noise criterion curves
nonverbal communication channel
nose-rider
not get over sth
obispo
occupational safety and health regulations
oral gland
outworlder
Patpend
posterior military press
record of achievement
residual-wax soil
RTA
secondary segregation
sensitivity of a receiver
ship's paint
shoe opener
social information processing
stabilization of operating point
sweetheart necklines
Taihang Mountains
Taraxacum macula
test of engine
tetrapak
Theria
thumb a nose at
timebands
track error
tracking feed
Winkelman's disease