单词:transtactic polymer
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This is the VOA Special English Health Report. New York City wants to fight fat. The Board of Health has passed a ban on trans fats in all restaurants. Kentucky Fried Chicken sells a fried chicken fre
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
This is scientific Americans 60-Sencond Science. I am Karen Hopkin. This will just take a minute. When you think about silk, you probably think of gossamer fibers woven into lustrous garments or decadently soft bedsheets. But silk is also prized for
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
Eleven countries in the Pacific region have signed a major Asia-Pacific free trade agreement in Santiago, Chile. The deal is a new version of the Trans-Pacific Partnership from which the U.S. withdrew last year. The agreement is called the Comprehens
From VOA Learning English, this is the Health Lifestyle report. There may be something in your food that you cannot see and cannot taste. But it could be killing you. It is an artificial oil commonly called trans fat. Trans fat is a toxic chemical th
英语四级同形异义词辨析06 1. The work was almost complete when we received orders to no further with it. (2003.06) A) progress B) proceed C) march D) promote 2. It was the first time that such a had to be taken at a British nuclear power st
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
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
Hardline Stance on Iran Nuclear Deadline Could Be Pressure Tactic STATE DEPARTMENT As the March 24 deadline nears for Iran nuclear negotiators to agree on the fundamental structure of a final deal, both the U.S. and Iran increasingly have been vocal
'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
Part 2. Green Transporation Festival. Keywords. Green Transporation Festival, oil, environment, reduce, other kinds of fuels. Vocabulary. hydrogen, propane, scooter, hybrid, ethanol. A. You are going to hear a report on green transporation festival.
BEIJING, Nov. 4 (Xinhuanet) -- The amount of trans fat and other nutritional information will be marked on the labels of prepackaged food, according to the country's first national standard for food nutrition. The labeling will take effect on Jan 1,
Technology shows such as the annual E3 games conference in Los Angeles have become known for their scantily clad 'booth babes' designed to attract people to stands. 在洛杉矶,一年一度的E3游戏展以穿着暴露的展品模特儿闻名。 H
Both metaphorically and in reality, the translucency connected the inner engineering of the computer to the outer design. 无论是比喻还是现实,这种半透明都把内部的工程学构造和外壳设计联系在了一起。 Jobs had always
By the next showing Ive had refined the playful model. 在下一次展示之前,艾弗又完善了这个模型。 This time Jobs, with his binary view of the world, raved that he loved it. 这一次,乔布斯带着他那不是杰作就是狗屎的评