单词：rotary piston type positive displacement flowmeter
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用Mp3背六级单词
Hi, I'm Carl Azuz, we welcome you to ourSeptember 11th 2013 edition of CNN student news. This is the anniversary of thetragic day of American history when members of al-Qaeda terrorists grouphijacked 4 passage planes of United States, they flow two o
CNN2013年(九)月
A:Welcome to Als Garage. What seems to be the problem? B:No problem at all! I am taking a long road trip and I want to make sure my car is in good mechanical condition. A:Very wise decision. When was the last time you had a tune up? B:Not that long a
纯正地道美语
Topic 1-Undergraduate students in 5 cities encouraged to pay housing provident fund Five Chinese cities have announced that they will encourage undergraduate students to pay into the housing provident fund when they are still studying in universities
英语角-圆桌会议
By Alan Silverman Hollywood 10 June 2006 A scene from 'Cars' A talented young race car learns what is important in life when he gets stuck in a small town in the new feature from Pixar, the animation studio with a history of family hits including To
2006年VOA标准英语（六月）
Doping cases at the Beijing Olympics have been far fewer compared to recent games. As of Friday, just five athletes had tested positive for banned substances. As VOA's Jim Stevenson reports from Beijing, the news is good for the International Olympi
VOA标准英语2008年（八月）
SCIENCE IN THE NEWS - Fight to End Polio a Story of Unexpected Problems, but Also Progress Over the years, polio experts have had to learn to deal with surprises. Transcript of radio broadcast: 03 March 2008 VOICE ONE: This is SCIENCE IN THE NEWS in
VOA慢速英语2008年（三）月
Ocean Floor Reveals Past Climate Changes Time capsule Lamont research professor Maureen Raymo, the director of the Core Repository, slides open a long, narrow drawer from the cabinet. Like thousands of others here, the drawer contains a long, thin cy
VOA标准英语2012年(一月)
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)
WWII-era Warplanes Fly Over Washington 多架二战战机飞过华盛顿上空 Seventy years after the Second World War ended in Europe, warplanes of that era still attract a lot of attention and admiration, both for their designers and the crews tha
VOA标准英语2015年(五月)
This is the VOA Special English Development Report. An Afghan girl receives a dose of polio vaccine The World Health Organization has begun to use a new vaccine against polio. Officials say it will become a major tool in the campaign to end a disease
2010年慢速英语(一)月
Coffee, computers and piston engines - could we imagine a world without them? These are intricate parts of every day life for most of us and the knowledge that led to them was either invented by or passed down through the ancient Muslim world. That's
VOA标准英语2010年(二月)
A group of senior students from Zhejiang University have successfully developed an air hand-washing device. 浙江大学的一队大四学生成功研制出了空气洗手装置。 The device utilizes an infrared ray induction system, which detects t
英语新闻
When Dusty learns that his engine is damaged and he may never race again, he shifts gears and is launched into a world of aerial firefighting. I thought it was a great start. I knew that it would be a more of a harrowing adventure. The first film was
CCTV9英语新闻2014年07月
Track One From a very young age I had a bit of a fascination with flying 我自儿时便有些迷上了飞行 Bit of a fascination with speed 着迷那样的高速（驾驶） As I went through school and into my A-Levels I wanted to pursue a flying
英语PK台
The Internet has dramatically altered our lives over the past few decades. Although some of these changes have been negative, the overall effect of this technology has been positive. What are your opinions on this? The Internet has brought significan
托福英语