单词:sound insulation index
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(woman) Thank you. It's great to see so many of you interested in this series on Survival in Outer Space. Please excuse the cameras - we're being videotaped for the local TV stations. Tonight I'm going to talk about the most basic aspect of survival
13 Skyscrapers and Environment In the late 1960's, many people in North America turned their attention to environmental problems, and new steel-and-glass skyscrapers were widely criticized. Ecologists pointed out that a cluster of tall buildings in a
饶舌:Gym Class Heroes - Peace sign index down 相关介绍 :来自纽约的Gym Class Heroes(以下简称GCH),起源于1997年负责说及唱的Travis Schleprok McCoy与鼓手Matt McGinley在高中一同上体育课而结识为好友,两位以嘻
AS IT IS - The Social Progress Index Welcome to AS IT IS from VOA Learning English. Im Mario Ritter. Today, we hear about a different way to measure economic growth, the Social Progress Index. We also hear from the author of a book about institution
By Barry Wood Washington 16 January 2008 The latest annual index of economic freedom ranks Hong Kong and Singapore on top for the 14th consecutive time. VOA's Barry Wood reports the Heritage Foundation survey shows economic freedom has improved sligh
From NPR News in Washington, I'm Barbara Klein. At least nine people have been killed and dozens injured by a bomb at a busy restaurant in Western India. Anti-terrorism forces have been dispatched to the scene and major cities around the country have
In a landmark development within stem cell research, scientists say theyve used a cloning technique to make embryonic stem cells that match a patients DNA. The journal Nature highlights a study that shows the potential for using the technology to rep
This is Scientific American 60-Second Science. I'm Cynthia Graber. This will just take a minute. The fridge is one of your home's biggest energy hogs. Better insulation can make refrigerators much more efficient. And a panel encasing a vacuum is one
Broadcast: Jan 21, 2003 By Gary Garriott Drying food is a simple, low-cost way to keep food safe for eating. Drying removes water that small organisms use to break down food into other substances. Som
President Obama traveled to Montana today to promote his administration's health care initiative, telling an audience at a town hall meeting there that the news media may have bear some of the blame for overemphasis on scenes of angry protesters at
From NPR News in Washington, Im Renita Jablonsky. President Obama is revising his health overhaul plan to add some Republican proposals. But as NPRs Julie Rovner reports, theyre not likely to win many new votes. Mr. Obama said the changes were prompt
1. Toyota has announced it will recall more than 400,000 Prius and other hybrid vehicles around the globe to fix brake problems. This recall is the latest in a string of embarrassing safety problems at the world's largest automaker. This recall invol
An Iron ore index has now been launched here in China. As CRI's Wei Tong reports, it's designed to give Chinese companies a bigger say over the pricing of the key component in the production of steel in the international market. The index consists of
The Hang Seng(香港恒生银行) China Enterprises Index on the Hong Kong Stock Exchange rose 52.69 points, or 0.45 percent, to close Monday's trading at 11,673.37. The H-shares index, initiated in August 1994 and readjusted(重新调整) on
Science and technology 科学技术 Astrochemistry 天体化学 The great test tube in the sky 空中的大试管 Space is one big chemistry set 宇宙是一个很大的化学装置 MOST people think of the empty space between the stars as being, wel
BEIJING, March 4 (Xinhuanet) -- Well-educated and well-paid single Chinese women were at the forefront of a boom in travel by the country's women in 2010. According to the 2010 Trend Report of Women's Travel, the amount of travel by Chinese women inc
AA: I'm Avi Arditti with Rosanne Skirble, and this week on WORDMASTER: More advice about giving oral presentations. Last week English teacher Nina Weinstein talked about ways to get mentally prepared. The most important part of any speech is you, Nin
China's business climate index falls in Q3 BEIJING, Oct. 18 (Xinhua) -- China's business climate index, a major gauge of the country's macroeconomic outlook, continued to fall in the third quarter, according to a latest survey. The quarterly index dr
Many houses in New Zealand are cold. Our traditional wooden house had no insulation. If you live in a house like that, you are paying for heat to escape from the ceiling, walls and under the floor. Insulation is made from material like wool or fibreg