单词:ion-exchange polymer
单词:ion-exchange polymer 相关文章
When you go abroad, what's the thing you need most? Money, of course! You'll need to go to the bank to buy some traveler's checks. Then when you arrive at your destination, you'll have to go to a bank
[00:00.00] unit 14 Mainly Revision [00:34.51]Ann___(not,watch)TV last night.The children__(go)to the farm last Saturday. [00:47.86]The boys__(meet)after school yesterday afternoon. [00:53.42]Mr Turner__(say)sorry to the conductor on the train because
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
By Mario Ritter Broadcast: November 14, 2003 This is Steve Ember with the VOA Special English Economics Report. Last week we told about the New York Stock Exchange and the 1)resignation of its chairma
By Mario Ritter Broadcast: November 7, 2003 This is Bob Doughty with the VOA Special English Economics Report. The largest 1)stock market in the world is the New York Stock Exchange. It is also the ol
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
By Cindy Saine Washington 21 September 2007 The U.S. tech-heavy stock exchange, Nasdaq, has struck a deal to sell a 20 percent stake to the United Arab Emirates-owned Borse Dubai, in exchange for control of the Nordic bourse operator OMX. But the dea
Occupy Wall Street Protesters Hold 'Day of Action' Two days after a court ruling closed the Occupy Wall Street encampment in New York, the protesters held a Day of Action -- not only in New York but other cities across the nation Thursday. The protes
Venezuelan Election is Again Choice Between Socialism, Capitalism Business has not been good for Rotzen Villabon, who owns a gift shop called Viqiu. He needs dollars to import products made in China but he can't find any at the official exchange rate
'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
ECONOMICS REPORT - Will Former Exchange Chief Have to Return Pay? By Mario Ritter Broadcast: Friday, June 04, 2004 This is Bob Doughty with the VOA Special English Economics Report. Not many people wo
BEIJING, Jan. 12 (Xinhua) -- China will push forward the development of a national off-exchange or over-the-counter (OTC) market to meet growing financing demand of enterprises, a senior securities official said on Saturday. Yao Gang, vice chairman o
China, Russia vow to advance cultural exchange
BEIJING, Dec. 27 (Xinhua) -- The People's Bank of China (PBOC), China's central bank, announced Tuesday that it is banning local regions, institutions or individuals from setting up gold exchanges apart from the existing Shanghai Gold Exchange and Sh