单词:gypsum insulation
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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
ANNOUNCER: Welcome to THIS IS AMERICA IN VOA Special English. I'm Faith Lapidus. One of the world's great natural wonders is in the state of New Mexico, in the American Southwest. Nature has created huge moving hills of pure white sand. These sand d
ANNOUNCER: Welcome to THIS IS AMERICA IN VOA Special English. I'm Faith Lapidus. White Sands National Monument One of the worlds great natural wonders is in the state of New Mexico, in the American Southwest. Nature has created huge moving hills of
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
Cooked soybeans failed to whet people's appetite and, to make matters worse, caused flatulence. 煮熟的大豆无法引起人们的食欲并且使肠胄大量胀气。 People urgently needed to find the best way to consume soybeans. 迫切的需要就
Jogging.慢跑 I tried jogging for losing weight. 为了减肥,我试着去慢跑。 However much I jog, I was unable to lose weight. 我不管怎么慢跑,就是无法减肥。 When I went jogging today, I hurt my ankle on the way. 我今天去跑
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
Broadcast: Feb 19, 2003 By Shelley Gollust VOICE ONE: This is Steve Ember. VOICE TWO: And this is Mary Tillotson with the VOA Special English program EXPLORATIONS. Today we tell about one of the world
THIS IS AMERICA - White Sands National Monument: A Wonder of Nature, in New Mexico By Shelley Gollust Broadcast: Monday, September 19, 2005 (MUSIC) ANNOUNCER: Welcome to THIS IS AMERICA IN VOA Special
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
ANNOUNCER: Welcome to THIS IS AMERICA IN VOA Special English. I'm Faith Lapidus. One of the world's great natural wonders is in the state of New Mexico, in the American Southwest. Nature has created huge moving hills of pure white sand. These sand du
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
HELSINKI, July 17 (Xinhua) -- A waste stack near the coast of the Baltic Sea is leaking considerable amount of phosphorous to the sea waters, Finnish environment ministry said on Wednesday. The Finnish Environmental Institute took samples from two ph
The four miners have been named as Guan Qingji, Hua Mingxi, Li Qiusheng and Zhao Zhicheng. They were brought to the surface one after another through an specially drilled access shaft between 9:20 and 10:50 local time, late on Friday. They are now re
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