单词：deformation vibration
单词：deformation vibration 相关文章
Computer Simulations Might Predict Future Earthquakes 电脑模拟能够预测未来地震 Geologists say they knew a large earthquake was coming in South Asia, but they did not know when. The Himalay
VOA2005（下）--环境科学探索
Leading the news this morning It seems Labor's woes aren't only confined to Queensland.The latest news poll shows the gap between the two parties preferred vote has widened to 14,with coalition sitting on 57%.The ALP's primary vote has slipped three
澳洲ABC新闻快递2012年
I'm John Berman, sitting in for *, welcome to the 360 podcast. Convicted of trying to kill three people but not actually killing a fourth. Michael Doug raise a justice. Let's get started. It was a shocking crime. It started as a disagreement over lou
CNN2014年(二)月
Every two weeks, on the full and new moons, the sun, moon and Earth fall along a nearly straight line. The combination of gravitational forces in this arrangement creates large swings in the tides. But the celestial alignment affects more than the oc
2016年Scientific American(九)月
...Africa. The African plate has been drifting north over millions of years. And when it pushes against the European plate, huge fold s of rock have been forced up and over one another into great moun
欧洲自然写真
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. When we think about how to represent sound visually, most of us probably picture those volume-dependent sine waves. But thats not how John Stuart Reid
Scientific American(一)月
This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Bats see with their ears, which are highly attuned to pick up minute variations in the reflection of the sound pulses they use to echolocate. Here are so
Scientific American(十二)月
By Gilbert da Costa Abuja 27 June 2006 Lawal Manesara who is a polio victim rides on a skate board along a street of Lagos, Nigeria Nigeria is to launch an ambitious immunization strategy to halt the spread of polio in Africa's most populous country
2006年VOA标准英语（六月）
The deputy head of Ingushetia's Supreme Court has been shot dead in the latest incident of violence to hit Russia's troubled Caucasus region. The assassination of Justice Aza Gazgireeva follows a recent high profile killing in neighboring Dagestan,
VOA标准英语2009年(六月)
A cluster of villages in China's Guizhou province has been plagued by an outbreak of disease that damages teeth and bones. Now, a new study by Chinese and American researchers puts the blame on polluted coal burned in home fireplaces. In small quanti
VOA标准英语2010年(十)月
This is Scientific Americans 60-Second Science. I am Christopher itagliata. Got a minute? How heavy is the Milky Way in comparison to its neighbor galaxy, Andromeda? Well, depends how you calculate it. In 2006 one group of astronomers figured the Mil
2014年Scientific American(八)月
How heavy is the Milky Way in comparison to its neighbor galaxy, Andromeda? Well, depends how you calculate it. In 2006 one group of astronomers figured the Milky Way was twice as massive as Andromeda. A 2009 estimate evened the score, calculating th
2014年Scientific American(八)月
How heavy is the Milky Way in comparison to its neighbor galaxy, Andromeda? Well, depends how you calculate it. In 2006 one group of astronomers figured the Milky Way was twice as massive as Andromeda. A 2009 estimate evened the score, calculating th
2014年Scientific American(八)月
1. Russians 1、俄罗斯人 Scientists still cannot agree on their origins and answer the question when Russians became Russian. The ancestry of Russians were sought among Normans, Scythians, and Sarmatians, and even the South Siberian Usuns. 俄罗斯
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Why Don't Snorers Wake Themselves Up? Anyone who's ever slept in the same room as a loud snorer knows how infuriating it is to have to suffer through all that noise while the offending party remains blissfully oblivious and asleep. Loud snorers can w
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By Paul Sisco Washington, DC 15 February 2008 Scientists have started analyzing data and images acquired when the Messenger space probe passed within 200 kilometers of the planet Mercury last month. It was the first flyby of the solar system's inner-
VOA常速英语2008年（二月）
The Zika virus outbreak in Latin America could be a bigger threat to global health than the Ebola epidemic that killed more than 11,000 people in Africa. That's according to several public health experts who spoke with the Guardian and Examiner newsp
英语新闻
本期内容： The World Health Organisation warned that Zika, a mosquito-borne virus linked to brain deformation in human fetuses, is likely to spread to every country in the Americas except Canada and Chile. Brazil has reported 3,893 cases of micr
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