单词：calibre ratio of combustion chamber
单词：calibre ratio of combustion chamber 相关文章
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)
Topic1-More singles bad for economy or not A recent media report says the population of single people in the Chinese mainland equals to the total population of Russia and the UK combined. The general impression goes like this: single ladies and guys
英语角-圆桌会议
ARI SHAPIRO, HOST: Are American police too afraid of the public? That's a sensitive question, especially after five officers were gunned down in Dallas last week. Many reformers say it has to be asked. NPR's Martin Kaste reports now on the growing de
英语语言学习
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
图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t
数学英语
图片1 图片2 by Jason Marshall Despite many peoples assumption to the contrary, math is undeniably artistic. It takes a tremendous amount of creative muscle and artistry to devise mathematical solutions. And, as made evident by their frequent batt
数学英语
This is Scientific Americans 60-Second Science, I am Cynthia Graber .This will just take a minute. How can we improve engines, inhalers and fire extinguishers? Maybe by copying a beetle. The bombardier beetle's name might scare off predators if they
Scientific American(四)月
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
Scientific American(三)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)
BEIJING, May 13 (Xinhuanet) - China's central bank announced on Saturday it would lower the reserve requirement for commercial lenders by 50 basis points, the second time it has taken such action this year to inject more market liquidity and shore up
英语新闻
今天我们要学的词是pragmatic。 Pragmatic, 是务实的意思。美国国务卿提名人选希拉里.克林顿星期二参加国会参议院的确认听证会。 Hillary Clinton promised that she would take a pragmatic approach to diplomacy a
英语每日一词
South Korea had quite a solid first quarter in terms of economic performance. The country saw 0.9 percent GDP growth in the first quarter, a sign that suggests a recovery in the near future. South Koreas economic rise is fuelled by a sharp upswing in
CCTV9英语新闻2014年04月
Universities in more than 20 countries and regions have accepted Chinese students' applications along with their national college entrance exam results. As the Chinese universities are busy with their annual admission process now, many overseas unive
英语新闻
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
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China's sex ratio is quite worrying nowadays. According to census data, China's sex ratio at birth was 108 males to every 100 females in the early 1980s, only slightly above the natural rate of 103 to 107. In 2000 the ratio was 116.9 males to 100 fem
英闻天下
A vice president of a Manhattan bank needed an assistant. He told his secretary to put an ad on Craigslist. I want recent MBA graduates, he said. About 200 applicants responded to the detailed ad. The secretary made a list of the applicants. She orga
英文短篇故事（纽约）
❤ 模仿文本：Now some say economic prediction is a bit like weather forecasting, even less likely to be correct. Well, if so, those looking for an outbreak of sunshine in the global economy have found it's actually, well, pretty overcast. The n
英音模仿秀
Looking for love: Research suggests women are find it more and more difficult to find men of a similar social status. Women are overtaking men in education and in the workplace, a senior Government minister said yesterday creating a new generation of
实用英语
今天我们要学的词是mix-up。Mix-up名词，意思是混淆、搞错 。Chinese scholars slammed White House aides after their mix-up of the People's Republic of China and the Republic of China, which Beijing does not acknowledge. 中国学者猛
英语单词荟萃
模仿文本：The BBC has learnt that the banks were aware of problems in foreign currency markets here in London, four years before the Financial Conduct Authority began its investigation into exchange rate fixing. Analysts noticed sharp movements
英音模仿秀