单词：thermally induced refractive index gradient
单词：thermally induced refractive index gradient 相关文章
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用Mp3背六级单词
VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: Researchers at Ohio State University studied exercise-induced asthma among top athletes at the school. Ohio State football players practice earlier this year.
VOA慢速英语2007年（十）月
Laser Technology to be Used to Warn Straying Pilots 用激光技术为迷航的飞行员示警 In September 2004, a Delta pilot claimed a laser beam injured him as he was about to land his jet in Salt
VOA2005（上）--环境科学探索
ESA to Make 3D Map of Milky Way 欧洲太空总署绘制银河系的3D地图 The European Space Agency this week successfully launched the star-mapping satellite Gaia on a mission that will take it more than a million kilometers from Earth - to creat
VOA常速英语2013年(十二月)
饶舌:Gym Class Heroes - Peace sign index down 相关介绍 ：来自纽约的Gym Class Heroes(以下简称GCH)，起源于1997年负责说及唱的Travis Schleprok McCoy与鼓手Matt McGinley在高中一同上体育课而结识为好友，两位以嘻
英文爵士乐
AS IT IS - The Social Progress Index Welcome to AS IT IS from VOA Learning English. Im Mario Ritter. Today, we hear about a different way to measure economic growth, the Social Progress Index. We also hear from the author of a book about institution
2013年VOA慢速英语(四)月
By Barry Wood Washington 16 January 2008 The latest annual index of economic freedom ranks Hong Kong and Singapore on top for the 14th consecutive time. VOA's Barry Wood reports the Heritage Foundation survey shows economic freedom has improved sligh
VOA标准英语2008年（一月）
Lesson Nineteen 听力部分 Dictation: Please prepare your paper and pen. There are really __________ for _____ wine ______-_______________ a good corkscrew, ____, _______________, __________ the ____ of _______. The ______________ that most America
王强口语 第二册
And we believe that these responses in higher-order areas are induced or become similar across listeners 我们认为，听众这些相似的大脑高层次区块反应， because of the meaning conveyed by the speaker, and not by words or sound. 是由
TED演讲科学篇
An Iron ore index has now been launched here in China. As CRI's Wei Tong reports, it's designed to give Chinese companies a bigger say over the pricing of the key component in the production of steel in the international market. The index consists of
世界各地新闻集锦
By Carol Pearson Washington 07 May 2008 The World Health Organization expects the number of women who smoke to triple over the next generation, if current trends continue. As a result, it expects more than 200 million women to die from tobacco induce
VOA标准英语2008年（五月）
Ways to smile 微笑的方式 Give and maybe don't receive. 付出，也许无需有所得 College is a perfect time to get involved in volunteering for a cause. 大学是个为了一个目标参加志愿活动的绝佳时间。 No matter what your p
英语听力广播—Listening
When you think you've seen everything that could possibly be done with nail art, manicure devotees prove you wrong. Step forward the new trend blowing up on Instagram for 'bubble' nails, where acrylic is piled up on top of the nail and thinned out to
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Pill May Change Attraction In a study in the journal Trends in Ecology and Evolution, researchers note that the birth control pill may change a woman's choice in whom she finds attractive. Cynthia Graber reports Some people like to think theres somet
60秒科学
让人无语的电脑失忆症 各种电子设备用久了，我们好像都习惯了打拼音、选汉字。真正要拿笔写字的时候就会出现提笔忘字的情况，有关专家把这种现象叫做电脑失写症。 你有电脑失写症吗？
实用英语
The Hang Seng（香港恒生银行） China Enterprises Index on the Hong Kong Stock Exchange rose 52.69 points, or 0.45 percent, to close Monday's trading at 11,673.37. The H-shares index, initiated in August 1994 and readjusted（重新调整） on
英语新闻
BEIJING, Sept. 26 (Xinhuanet) -- Young unmarried migrant women are facing a high risk of induced abortions in China and experts urged that they have better access to reproductive health education. Among the 8 to 10 million induced abortions performed
英语新闻
By Carol Pearson Washington 03 September 2007 U.S. Military doctors have performed more than 100,000 eye surgeries on active duty personnel to eliminate the need for glasses or contact lenses. Now, at the new Joint Warfighter Refractive Surgery Cente
2007年VOA标准英语（九月）
The tech-heavy Nasdaq index has closed at a record high, surpassing a level it last reached in 2000 at the height of the dot com bubble. 以科技股为主的纳斯达克指数再创历史新高，超过了其2000年互联网泡沫的高峰期的水平
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China's business climate index falls in Q3 BEIJING, Oct. 18 (Xinhua) -- China's business climate index, a major gauge of the country's macroeconomic outlook, continued to fall in the third quarter, according to a latest survey. The quarterly index dr
英语新闻