氢气发动机;液氢发动机

[00:04.57]Excitement fills the early morning air as you arrive at learn to recognize and name each part of the parachute. [00:19.17]You also learn what each part does. [00:22.05]The excitement builds as your teacher describes each stetp it of the jum

发表于:2018-12-03 / 阅读(102) / 评论(0) 分类 美国英语听力80篇

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(141) / 评论(0) 分类 听广告学英语

The composition of the sun lies in this bar code. 这个条码说明了太阳的组成 All the thin lines are caused by tiny amounts of complex elements 这些细细的线条,都是微量复杂元素造成的 metals like iron and magnesium. 好比说

发表于:2018-12-07 / 阅读(113) / 评论(0) 分类 太阳科普

Broadcast: February 14, 2003 By George Grow This is the VOA Special English Environment Report. President Bush has offered a plan to speed development of technology that uses hydrogen as fuel. His goa

发表于:2018-12-07 / 阅读(105) / 评论(0) 分类 VOA2003(上)-科技导航

I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indians and Pakistanis

发表于:2018-12-12 / 阅读(81) / 评论(0) 分类 英语演讲

I couldn't get over this mess. The federal government is confirming what Joan Glickman of Pompano Beach, Florida suspected all along. Tainted drywall from China is giving off a harmful gas that's turning her air-conditioning wiring black, causing it

发表于:2018-12-20 / 阅读(79) / 评论(0) 分类 cnn2009年(十一)月

[00:07.58]Igor Sikorsky was born in the city of Kiev, Russia; on May 25, 1889. [00:16.12]His mother was a doctor. [00:15.12]His father was a professor of psychology. [00:18.59]Igor became interested in science when he was very young. [00:23.82]He was

发表于:2018-12-26 / 阅读(87) / 评论(0) 分类 美国英语听力80篇

Everybody uses search engines. The most popular one in the world is Google. Im not sure if its the best search engine but everyone knows it. Google always works for me. I never use any other search engine. I dont really see any need for anything else

发表于:2018-12-28 / 阅读(127) / 评论(0) 分类 听一分钟英文-S

EXPLORATIONS -February 27, 2002: Fuel Cell Cars By Mario Ritter VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we tell a

发表于:2019-01-02 / 阅读(95) / 评论(0) 分类 Explorations

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

发表于:2019-01-04 / 阅读(93) / 评论(0) 分类 Scientific American(八)月

Fighting Fire in Nairobi with Just One Fire Engine 内罗毕的消防部门只有一辆消防车 肯尼亚首都内罗毕人口日益增长完全超过了城市应急设施的承受范围。这个城市的消防部门已经捉襟见肘,居民正在采取

发表于:2019-01-14 / 阅读(80) / 评论(0) 分类 VOA标准英语2013年(七月)

讲解 Today's key word is Engine engine[英][end??n][美][?nd??n] n.发动机,引擎; 工具; 火车头; 机车; vt.给安装发动机; Eg. is a search engine.) It means: A machine designed to convert one form of energy into mechanical energy. 例

发表于:2019-01-17 / 阅读(78) / 评论(0) 分类 英语悠选脱口秀

SAN FRANCISCO, Nov. 21 (Xinhua) -- E-commerce and online payment giant eBay announced on Monday that it has acquired New York-based technology startup Hunch, an online platform that delivers customized recommendations to users based on their individu

发表于:2019-01-22 / 阅读(182) / 评论(0) 分类 英语新闻

NEW YORK Plug in your car, then unplug, and drive away. More and more consumers are doing just that. At the 2014 New York Auto Show many automakers unveiled electric or hybrid vehicle to address the growing global appetite for environment-friendly ca

发表于:2019-01-30 / 阅读(83) / 评论(0) 分类 英语新闻

SEOUL/WASHINGTONThe U.N. Security Council said Wednesday that it was working to craft new sanctions against North Korea after its latest nuclear test, while the United States and other world powers voiced skepticism about Pyongyang's claim that the u

发表于:2019-02-04 / 阅读(42) / 评论(0) 分类 英语新闻

Questions 12-20 The elements other than hydrogen and helium exist In such small quantities that it is accurate to say that the universe somewhat more than 25 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measur

发表于:2019-02-05 / 阅读(104) / 评论(0) 分类 托福英语

PREFIX 1.a-:of;on;intensive;negative,not,without;ad-;ab-. 2.ab-:away from,off. 3. ad-:to;at;for. 4. aer(o)- :relating to air . 5.al-:all. 6.ambi-:on both sides,around. 7.amphi-:on both sides,around. 8.an-:negative,not,without. 9.ana-:upon,up,on. 10.a

发表于:2019-02-06 / 阅读(123) / 评论(0) 分类 雅思英语

December 30, 1954 I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indi

发表于:2019-02-09 / 阅读(125) / 评论(0) 分类 英语美文

9月16日是墨西哥馆日,墨西哥馆五颜六色的风筝森林吸引了不少人的眼球,你知道小小的风筝里有什么大学问吗?其实风筝也有很多种分类哦,一起来看看吧。 说到kite这个单词,这也许是我们

发表于:2019-02-18 / 阅读(131) / 评论(0) 分类 英语口语

North Korea conducted a 'successful' hydrogen bomb test, Pyongyang has confirmed. The thermonuclear weapon triggered a massive 5.1 magnitude earthquake when it exploded at 10am local time on Wednesday. 平壤方面已经证实,朝鲜成功的进行了

发表于:2019-02-18 / 阅读(67) / 评论(0) 分类 英语新闻
学英语单词
acetyl-resorcin
afaite
after a while
arc control device
bathetically
black consciousness
blurrily
buang
carbon-free steel
cash dispensers
caustic pot
celts
chancre of portio vaginalis
chancrous adenitis
Chernobyl accident
coal-meter
commercialist
congenital mixed myxoma
container pier
croire
data paths
deca-joules
dense-phase transporting system
design response
does with
economy of passenger
electric slag smelting
equipment and supplies
expire date
external referral identifier
fast dyed yarn
field garlic
fighting frenches
fire-missile
fish-fingers
Frick alloy
frictional-heating
Fritzlar
FSB
genus Pluteus
gringoes
halow
hanging plant
hompensan
i-washe
iaap
iconium
iminodibenzyl
infra dig
initial main sequence
intratubal
irrigation projects
kankrej cattle
lays it on thick
lecher oscillator
LGBTA
library entry
lithuanianism
moulded breadth
news cycle
oligoplasmatic
optical parallel transmission
outpress
oxidized microcrystalline wax
oxycinesia
oz. t.
PACOB
paradise road
peripneumony
Polik
porcelain carving
Portavogie
pterygoid fossa
purpuroxanthene
pyrexeophobia
questiomycin
rectors
reimbursement letter of credit
sb's name is mud
scalar data
self-abuses
sepal
setispinus
shallow hoisting
shallow marine deposit
sight-seeing car
sockful
special use permit
Stratigraphic test well
stratum germinativums
succinylacetone
temperature buffer
Tyne, River
unequal irradiation effect
upper photic zone
uretero-enterostomy
vector pattern
ward leonard control system
water separation cover
wood fender pile
zanjero
zoodikers