气门式内燃机

[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(118) / 评论(0) 分类 美国英语听力80篇

第四篇 心血管系统 Section 4 Angiology 第一章 心血管系统 Chapter 1 Cardiovascular System abdominal aorta 腹主动脉 anterior cardiac vein 心前静脉 anterior inferior sinus of pericardium 心包前下窦 anterior interventricular branch 前室间支 anterior inte

发表于:2018-12-05 / 阅读(267) / 评论(0) 分类 医学英语

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(81) / 评论(0) 分类 英语沙龙2004全年合辑下

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(157) / 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(93) / 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(102) / 评论(0) 分类 美国英语听力80篇

英语基础--《英语1000高频词汇》(英语学习必须熟悉的1000词汇) 这是英语词汇中最基础的、使用频率最高的,约1000个词汇,不管是中学毕业还是大学毕业,这1000个单词都应该非常熟悉,因为这些单词真的太基础了,使用频率非常高。 如果听过《朗文词典》能用3000以内的单词

发表于:2018-12-30 / 阅读(70) / 评论(0) 分类 英语1000高频词汇

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(89) / 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(74) / 评论(0) 分类 365个英语简短小故事

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(118) / 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(94) / 评论(0) 分类 Scientific American(七)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(122) / 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(123) / 评论(0) 分类 VOA标准英语2016年(三月)

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(198) / 评论(0) 分类 英语新闻

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(84) / 评论(0) 分类 VOA常速英语2007年(十一月)

HOUSTON, July 25 (Xinhua) -- A shelter-in-place was ordered after a battery caught fire during a testing at NASA's Johnson Space Center Monday morning. A battery was being tested inside a containment system when it got overheated and caught fire at a

发表于:2019-01-31 / 阅读(123) / 评论(0) 分类 英语新闻

汽车类Automobile 整车Finished Automobile 轿车Passenger Car 休旅车Recreational Vehicle (RV) 小型商用车(3.5吨以下)Light Duty Commercial Car (Less Than 3.5 Tons) 大型商用车(3.5吨以上)Heavy Duty Commercial Car (More Than 3.5 Tons) 散装车Bulk Truck 搅拌车

发表于:2019-02-05 / 阅读(116) / 评论(0) 分类 英文语法词汇

Anirudh Sharma doesn't just want to pull harmful carbon from the air. He wants to offer a cheaper alternative to the exorbitant costs of ordinary printer ink. 阿尼鲁德夏尔马不仅想除掉空气中的有害炭物质,还希望创造一种更便

发表于:2019-02-13 / 阅读(98) / 评论(0) 分类 阅读空间

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(171) / 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(352) / 评论(0) 分类 2019年NPR美国国家公共电台2月
学英语单词
accountant's professional liability insurance
actuating quantity
ad hoc mobile network
aluminium soap
ampla
annotine
attribute property list
Bahaullah
baldridge
baronially
behavior integration
bid-offer
big sister
carburizing apparatus
carlsons
cembalist
checking her out
choice of tune
CIP process
coard
creampuff
crush dresser
cuaminosulfate
dentile
denture base aesthetics
dilution activity coefficiet
directing and operating
dishstone
drehbank
electron-pair creation
engelland
estacado
exorability
foot itch
friction-tight
frommarding
George Gilbert Scott
glue-sniffing
Grindsted
hammer thrower
head earing
hellebores
heptaseme
hexaminidase
hyce
indirect antiglobulin test
intimateness
JAGT.
japanese waltzing mice
kurt lewin field theory
laparoovatiectomy
levelheadedly
loan fund
long-dated securities
lung governing management and regulation
Mangwe R.
mcalesters
meaning-effect
mejorado
meta alunogen
metonymic
mill speed
mobile auxiliary gas turbine
msc.software
national debt ceiling
ncr form
nervi cervicales
nicemidi
noncharacteristic product
nonoverridden
number for matched loading
optical parallelism
ouananiche
Panawarfin
Parabaena sagittata
paratyphoid fevers
Pelekas
Persa-Gel
phyllactinia salmonii
porest
Prunus davidiana Franch
quadripaschal
radiofluorography
resistance equation
safe
sell
silver noble fir
Simmel, Georg
synallactic
tetrace scanning
thatcherism
trachelorrhaphies
transportation demand analysis
trepid
Trichodectes hermsi
undermeasuring
upgazed
variability of echoes
vocal felds
wake-up service
Wiener schnitzel
yld.