内燃机循环

[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(107) / 评论(0) 分类 美国英语听力80篇

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(69) / 评论(0) 分类 英语沙龙2004全年合辑下

Water Cycle 水循环 All the oceans on earth are salty, while inland water is typically fresh. How does water become salty? We'll answer a listener's question -- today on Earth and Sky. DB: This is Earth and Sky. We recently visited the Austin Childr

发表于:2018-12-07 / 阅读(110) / 评论(0) 分类 (科普英语)Earth and Sky

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(147) / 评论(0) 分类 听广告学英语

美国动力公司研发提升五成油效对置活塞二冲程发动机 This little engine looks like it has only three pistons, but in fact, it has six, sharing only three cylinders. 这台小身材引擎看起来只有3个活塞,但事实上却有

发表于:2018-12-16 / 阅读(87) / 评论(0) 分类 VOA标准英语2016年(三月)

[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(90) / 评论(0) 分类 美国英语听力80篇

What Do Octane Numbers Mean? At the gas pump, you have a choice of octane numbers. 87? 93? Whats the difference? To explain octane numbers, lets take an imaginative leap into the internal combustion engine of a car. Inside the cylinders are combustio

发表于:2018-12-31 / 阅读(81) / 评论(0) 分类 英语听力文摘 English Digest

George Gobel thinks that he might have helped dump his own sisters body. George told police that recently his brother-in-law Russell had asked him to help move a big metal barrel out of his house. Ill buy you a case of Bud, Russell promised. The barr

发表于:2018-12-31 / 阅读(64) / 评论(0) 分类 365个英语简短小故事

Fire Cycle 火灾规律 The El Nino phenomenon of 1997-98 unleashed torrential rain in some parts of the world, while creating abnormally dry conditions in others. And it sparked record numbers of wildfires. Learn more about climate and wildfire -- toda

发表于:2019-01-02 / 阅读(173) / 评论(0) 分类 (科普英语)Earth and Sky

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. On March 11th, Interior Secretary Ken Salazar called for a moonshot for energy independence. Hes set up a task force to look into the large-scale product

发表于:2019-01-08 / 阅读(110) / 评论(0) 分类 Scientific American(三)月

Die-hard advocates of alternate energy might fantasize about cars that could one day run on water. But scientists in India have gone a step further. Theyve mathematically modeled an engine that should allow a motorcycle to run on aircompressed air, t

发表于:2019-01-08 / 阅读(77) / 评论(0) 分类 Scientific American(七)月

考试日期: 2012年10月13日 Reading Passage 1 Title: 农村旅游(20110226老题) Question types: 段落信息配对题;完成句子;Summary 文章内容回顾 关于农业旅游业带来的各种影响和应用,比如随着农业旅游

发表于:2019-01-08 / 阅读(96) / 评论(0) 分类 雅思机经

This the VOA Special English Development Report. Picture a bicycle with a two-wheeled carriage in place of a back tire. India has millions of these cycle rickshaws. The operators are called pullers. They ride through the streets pulling passengers a

发表于:2019-01-11 / 阅读(93) / 评论(0) 分类 VOA慢速英语2009年(五)月

By Gary Thomas Washington 22 August 2007 The Central Intelligence Agency has released a report sharply critical of the CIA's senior leadership in the years and months leading up to the terrorist attacks of September 11, 2001. As VOA correspondent Gar

发表于:2019-01-13 / 阅读(117) / 评论(0) 分类 2007年VOA标准英语(八月)

This Internal Combustion Engine is 50% More Efficient 新型内燃机效率提高50% Internal combustion engines in cars may be on their way out, but experts agree it will take a few decades before electric-powered vehicles become dominant. Meanwhile

发表于:2019-01-14 / 阅读(114) / 评论(0) 分类 VOA标准英语2016年(三月)

The government said that work on the first seven cycle tracks which were promised earlier this year will start in the summer. This will cost $9 million. Another $41 million will be spent later. Together these cycle tracks will be called The Great Rid

发表于:2019-01-27 / 阅读(129) / 评论(0) 分类 新西兰英语

By Ravi Khanna Washington 09 November 2007 The current political turmoil in Pakistan has raised concerns in Washington that the Pakistani government is no longer focused on battling Islamic militants and it is making the country an even safer haven f

发表于:2019-01-30 / 阅读(76) / 评论(0) 分类 VOA常速英语2007年(十一月)

Classical music fans in Beijing are now embracing a massive work-the complete cycle of Beethoven's 9 symphonies with The Deutsche Kammerphilharmonie Bremen. Paavo Jarvi, an internationally famous Estonian conductor, is the artistic director of the or

发表于:2019-02-14 / 阅读(157) / 评论(0) 分类 2017CRI中国国际广播电台

今天我们要学的词是 internal. Internal 形容词,内部的。Britain's MI5 has begun an internal review of how it handled intelligence on the Manchester suicide bomber. 英国军情五处开始展开内部审查,看军情五处对所掌握的

发表于:2019-03-07 / 阅读(161) / 评论(0) 分类 英语单词荟萃

SCOTT SIMON, HOST: The Democrats' proposed Green New Deal calls for America to eliminate greenhouse gas emissions from U.S. transportation, an ambitious goal that would require - among many other things - phasing out cars that run on gasoline. That m

发表于:2019-03-17 / 阅读(340) / 评论(0) 分类 2019年NPR美国国家公共电台2月
学英语单词
absorption-type refrigerating appliance
activation temperature
activity against radar coverage
acvb
aminoquinoxaline
anathemization
anovenon
anti-inflationary
aquicultural
Architectonica
area-balanced
ascorbates
assentments
automatic feeding and catching table
automatic program generation
basic terminal
bearing wheel
beaver breather
bit dressing crane
bouncing castle
breakdown van
breckons
brush up
caerdydd (cardiff)
center of pressure moment
channelsource
charging nozzle
credit buying
cryptomenorrhea
deoxyuridylate
departure line
diagonal-bracing
diplomatic envoys
disease of sweat gland
e-lesson
express at
extrinsic method
falcatine
fastspeed
featherator
fenestrae
fermentation amyl alcohol
ferrozirconium
fieldwork
foat
fore flow
fter
FTHFA
gossypose
holzman
inexpedience
into mapping
korenman
liquor merbromini chirurgicalis
magneto resistive amplifier
majoretting
mashhammer
metallic thin film
neck dissection
neutral spore
notoptera
Nuevo Progreso
Of-
organdy finish
oxford-trained
peat-tar pitch
pemf
phenylmercury succinate
photochromotypy
pieds noirs
pointing function
post romanticism
posterising
pot fire
prabowo
pseudochondroma
reconnaissance orbiting stabilized platform
reddening line
release valve gasket
restigmatize
right-left bearing indicator
rispoli
Robert Peel
Rovamycine
saprolitic weathering
schizophrenic reaction
Senes
silene unifloras
single side heat sink
spiny puffer
strongly mixing
subtertian malaria
that's your lookout
tungsten(v) bromide
ulams
uncapsizing
Volonga
volumetric heat release rate
wing spar
Woolla Downs