单词:hypersonic ablation
单词:hypersonic ablation 相关文章
And our first story concerns a weapon that said to be hypersonic, meaning it would travel at several times the speed of sound. Russia's defense ministry says it's conducted a successful test of a hypersonic missile. A nation might want to want a weap
Lesson 46: Expensive and uncomfortable 既昂贵又受罪 First listen and then answer the question. 听录音,然后回答以下问题。 What did the man in this story do? When a plane from London arrived at Sydney airport, workers began to unload
That's an unnatural act for a rocket. 这对于火箭来说,不是一种自然的行为。 The third stage has a camera. 第三次发射,火箭上有一个摄像机。 We call it rocketcam. 我们称之为火箭摄像机。 And it's pointed at th
Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thank you!
A South Korean official says North Koreas leader commented that he is committed to denuclearization of the Korean Peninsula. National security advisor Chung Eui-yong also said that the leaders of North and South Korea are to meet in the capital of No
THE MAKING OF A NATION - February 14, 2002: Inauguration of Franklin Roosevelt By David Jarmul VOICE 1: THE MAKING OF A NATION -- a program in Special English by the Voice of America. (Theme) American
By Scott Stearns Washington 01 May 2007 President Bush gestures as he speaks to members of the coalition forces during a visit to US Central Command at MacDill Air Force Base in Tampa, Florida, 1 May 2007 President Bush says coalition forces are maki
This is the VOA Special English Agriculture Report. Agroecology students at Goshen College in Wolf Lake, Indiana Many colleges and universities in the United States provide education in agriculture. But only a few schools offer experience in traditi
By Robert Berger Jerusalem 25 February 2007 Palestinian youths throw stones toward Israeli soldiers, not seen, during an Israeli army operation in the West Bank City of Nablus, 25 Feb 2007 Israeli forces have raided the biggest Palestinian town in t
U.S. President George Bush is launching one of the biggest conservation efforts in the world. He is designating large tracts of the Pacific as national monuments - meaning they are protected from commercial fishing, mining and other uses. President
One of the key sources of renewable energy being developed today is wind power, utilizing giant turbines to generate electricity. These work best in windy places like the U.S. Great Plains that stretch from west Texas in the south to the Dakotas in
STEVE INSKEEP, HOST: President Trump's national security adviser, John Bolton, is in Moscow for a second day today. He's there to discuss President Trump's pledge to withdraw from an arms control treaty that bans certain kinds of missiles. This is on
By Melinda Smith Washington 19 March 2008 A scientific review published in the Journal of American Medicine shows that the field of genetics has made a lot of progress in recent years. According to JAMA , genetic testing is able to identify more than
By Daniel Schearf Beijing 01 November 2007 A team of American nuclear experts has arrived in North Korea to begin disabling the country's main nuclear facility. North Korea appears on track to keep its promise to divulge and disable all its nuclear f
By Lisa Schlein Geneva 10 December 2007 A new report finds that last year the number of children dying before their fifth birthday fell below 10 million for the first time since the United Nations has been keeping records. But, the U.N. Children's Fu
Lockheed Martin says it's developing a Mach 6 aircraft that would be faster than any other fighter jet. 洛克希德马丁公司日前宣布,该公司正在研发一款速度可达6马赫、比其它所有飞机都快的战斗机。 Called the Hype
The chains of habit are generally too small to be felt until they are too strong to be broken. - Samuel Johnson Editors note: This is a guest post from Mary Jaksch of Goodlife Zen. Have you ever had problems establishing a new habit? Maybe I should a
BEIJING, May 9 (Xinhua) -- The State Council, China's cabinet, said on Wednesday that the country will step up efforts to promote informatization development and strengthen information security. Speeding up the construction of informatization and bui