单词:polymer-based
单词:polymer-based 相关文章
Decade Later, Debate Goes on Over US Government Faith-Based Partnership A truck filled with food boxes arrives at the doors of the Church of the Nazarene in the Philadelphia suburb of Colingdale in time for the weekly Family Dinner. Neighborhood fami
[00:42.52]Listen to Xiaoyan and her friend Anne talking about the party. [01:46.90]Extract 2 Listen and write what you hear. [02:30.00]Extract 3 Answer the questions based on what you know about the party. [03:27.77]Extract 4 Listen to a description
[00:00.00]大学英语6级 听力20天20分 中国对外翻译出版公司 [00:11.18]第 11 天 [00:13.43]Passage One [00:15.01]Reading newspapers, listening to the radio or watching television [00:19.10]are three methods of communication that bring
Broadcast: Jan 20 2003 India has tested its most 1) sophisticated surface-to-air missile on the country's east coast. The test of the
U.S. President George W. Bush says religious-based charities have made a remarkable difference in the lives of needy people in the United States and Africa during his presidency. VOA's Kent Klein reports from Washington. President Bush makes a state
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t
This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because
Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c
Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor
Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene
DEVELOPMENT REPORT - Home-Based Management of Malaria By Karen Leggett Broadcast: Monday, May 31, 2004 This is Robert Cohen with the VOA Special English Development Report. Malaria is estimated to kil
Research Breakthrough for Biodegradable Tires? 研究人员研发完全可降解轮胎 Researchers say they have created a new synthetic rubber that could be used to make biodegradable tires. A team at Texas AM Universitys campus in the Gulf nation o
'Smart' Bandages Could Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded
While many students choose a college major based on their personal likes and interests, others choose a major at least in part based on their desired career, or potential for a long-term financial return. 很多学生选择大学专业是根据他们的
By Deborah Tate Capitol Hill 09 March 2006 A company based in the United Arab Emirates, Dubai Ports World, says it is transferring management operations at six U.S. ports to a U.S. entity. The surpris
The big numbers of the Chinas internet keep getting bigger. 中国互联网行业的大数字在不断变得更大。 Last Monday, ecommerce group Alibaba announced that it had hit a target of Rmb3tn ($462bn) in annual sales, a number that is more th