单词：four-stroke internal-combustion engine
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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
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
听广告学英语
By Nancy Steinbach Broadcast: October 1, 2003 This is Faith Lapidus with the VOA Special English Health Report. Scientists in Iceland say they have identified the first gene linked to common forms of
VOA2003（下）-环境与健康
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
VOA标准英语2016年(三月)
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
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
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When Henry ford decided to produce his famous v-8 motor, he chose to build an engine with the entire eight cylinders cast in one block, and instructed his engineers to produce a design in one for the engine. The design was placed on paper, but the en
精美英文欣赏
Diet Rich in Tomatoes May Reduce Stroke Risk A long-term study has found that people who routinely eat a lot of tomatoes are less likely to suffer strokes. Tomatoes are rich in lycopene, an antioxidant that scientists believe reduces the risk of hear
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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
Scientific American(七)月
When Henry ford decided to produce his famous v-8 motor, he chose to build an engine with the entire eight cylinders cast in one block, and instructed his engineers to produce a design in one for the engine. The design was placed on paper, but the en
励志英语
When Henry ford decided to produce his famous v-8 motor, he chose to build an engine with the entire eight cylinders cast in one block, and instructed his engineers to produce a design in one for the engine. The design was placed on paper, but the en
男人强励志英文
This is the VOA Special English Health Report. A stroke is a loss of blood flow in the brain. There are two kinds of stroke. One is an ischemic stroke. It happens when a blood vessel in the brain gets blocked. The other kind is called a hemorrhagic,
VOA慢速英语2008年（八）月
Health Report - Why Sleep Apnea Raises Risk of Stroke, Heart Attack This is the VOA Special English Health Report. (SOUND) Loud snoring can be a problem -- and not just for other people trying to sleep with the noise. It can also be a sign of sleep a
2011年VOA慢速英语(五)月
By VOA Sports Washington, DC 19 January 2008 German golfer Martin Kaymer has fired a 4-under-par 68 to maintain a six-stroke lead after the third round of the Abu Dhabi Golf Championship in the United Arab Emirates. Kaymer, last year's European PGA T
VOA标准英语2008年（一月）
Telemedicine has been used for years to deliver medical care to remote locations by audio or video links. Now, Canadian researchers are exploring the possibility of using that same technology to provide rehabilitation services to stroke patients in r
VOA标准英语2010年(六)月
A new study of stroke in the United States has found that the rate of brain-damaging blood clots has increased dramatically among people infected with HIV. The increase in strokes coincides with the use of newer, more effective AIDS medicines. Bruce
VOA标准英语2011年(一月)
Lifestyle Changes May Ease Heart, Stroke Risk We hear the message about how to live a healthy life so much, it's hard to imagine there's anyone who hasn't heard it. Heart disease is preventable, said Dr. Patrice Desvigne Nickens, with the National He
VOA标准英语2013年(七月)
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
VOA标准英语2016年(三月)
RACHEL MARTIN, HOST: About 800,000 people have strokes every year in the U.S. Most are caused when a clot blocks a blood vessel to the brain. We've known about strokes for a long time. But it wasn't until recently that doctors could do anything about
2017年NPR美国国家公共电台5月
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
2019年NPR美国国家公共电台2月