单词：graft polymer latex
单词：graft polymer latex 相关文章
By Mario Ritter Broadcast: August 12, 2003 This is Bill White with the VOA Special English Agriculture Report. We often think of agriculture as planting seeds and harvesting crops. But many crops do n
VOA2003（下）-农业与经济
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
Scientific American(四)月
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
Scientific American(三)月
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
Scientific American(一)月
Guayule- A Promising Crop From The Desert D:Holy guayule,Yale. Y:Holy what? D:Guayule.It's a desert-dwelling shrub from the Southwest. Y:What about guayule?I never even heard of it. D:Several things.One of the most important features of the guayule p
英语时差8，16
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
60秒科学
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
Scientific American(九)月
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
Scientific American(二)月
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
Scientific American(四)月
AGRICULTURE REPORT – June 18, 2002: Sunflower Rubber By George Grow This is the VOA Special English AGRICULTURE REPORT. Many farmers grow sunflower plants. The tall plants produce beautiful flowers
农业与发展
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
2016年VOA慢速英语(九)月
A new public-opinion survey by a Kenyan anti-corruption organization warnrd the country could face another round of violence at its next elections, if the government does not increase its efforts to fight graft. According to the survey by the Kenyan
VOA标准英语2009年(三月)
The War on Graft has sent shockwaves through the Kenyan Parliament in recent months, with several ministers being targeted in high-profile investigations. But Kenya's anti-corruption body says more are on the way. In recent months, Kenya's notoriousl
VOA标准英语2011年(一月)
'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
VOA标准英语2016年(二月)
Can I see my baby? the happy new mother asked. When the bundle was nestled in her arms and she moved the fold of cloth to look upon his tiny face, she gasped. The doctor turned quickly and looked out the tall hospital window. The baby had been born w
英语美文
By Heda Bayron Hong Kong 12 May 2006 Suharto (file photo) Indonesia's attorney general has dropped a graft case against ailing former President Suharto, who is suspected of amassing billions of dollar
2006年VOA标准英语（五月）
Related reading: BEIJING, April 5 (Xinhua) -- Guo Boxiong, former vice chairman of China's Central Military Commission (CMC), has confessed to taking bribes, military prosecutors said Tuesday. Military prosecutors have finished investigating Guo's al
cctv9英语新闻2016年
Wei Hong, the governor of Southwest China's Sichuan Province, was absent from key provincial meetings towards the end of last month. And there were rumors circulating online saying that Wei Hong was not contactable for some reason. At the news confer
2016CRI中国国际广播电台
Xi Jinping says the campaign against corruption should continue to cover all sectors and zero tolerance will be shown to violators. He also stresses that China is gaining ground in the fight against corruption, urging all Party members to maintain co
2016CRI中国国际广播电台