单词：safety cell
单词：safety cell 相关文章
By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The
VOA2003（下）-环境与健康
Food safety seems to be a big issue nowadays. I cant remember it being such a big problem years ago. With todays technology, it shouldnt be a problem. But it is. In fact, there are many problems. In my country, GM food is a big issue. People do not w
纯正英语一分钟
For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea
国家地理2008年
By Carol Pearson Washington 25 September 2007 A lot of people wonder about the impact cell phones might have on their health. And now a new study shows that heavy mobile, or cell, phone use may result in hearing loss. VOA's Carol Pearson reports. As
2007年VOA标准英语（九月）
By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme
VOA标准英语2008年（五月）
Push to Ban Cell Phone Use While Driving Builds In an unprecedented move, the National Transportation Safety Board in the U.S. is recommending that motorists turn off all cell phones while driving. The board, charged with determining the cause of tra
VOA标准英语2011年(十二月)
HEALTH REPORT – Safety Questions About Drugs By Jill Moss Broadcast: Wednesday, December 22, 2004 I'm Gwen Outen with the VOA Special English Health Report. Several pain medicines in the United Stat
健康与经济
By Nancy Steinbach Broadcast: July 2, 2003 This is Steve Ember with the VOA Special English Health Report. Lightning is the release of electrical energy in the sky. Lightning can start fires. It also
VOA2003（下）-环境与健康
By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app
2007年VOA常速英语（十月）
By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo
VOA常速英语2008年（四月）
BEIJING, Dec. 30 (Xinhua) -- Chinese government will take strong measures against companies that break food safety regulations to ensure healthy New Year holiday and the Spring Festival that falls in mid February next year. The authorities will imple
英语新闻
WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo
英语新闻
Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte
趣味英语
New traffic rules highlight school bus safety BEIJING, Oct. 8 (Xinhua) -- Chinese police have introduced two amended traffic regulations targeting school bus safety. Under the revised regulations on the management of driving licenses, failure to give
英语新闻
BEIJING, March 29 (Xinhua) -- The State Council, China's cabinet, has approved a draft of regulations on school bus safety management, according to a statement issued Thursday. The statement, released after a State Council meeting presided over by Pr
英语新闻
BEIJING, Dec. 25 (Xinhua) -- The Ministry of Education on Tuesday issued a circular urging school safety after a fatal school van crash in east China's Jiangxi Province that killed 11 kindergarten students on Monday. The ministry called on education
英语新闻
BEIJING, Feb. 26 (Xinhua) -- China's Ministry of Education on Tuesday reiterated it will fully implement the school bus safety regulation after some local schools were not aware of the new rules. A number of illegal kindergartens are still using disq
英语新闻
China issued a set of technical standards for school buses for primary school students last year, and the drafting of another standard for buses for the kindergartners is also underway. According to the draft, the government will adopt a license syst
英语新闻
By Jessica Berman Washington 19 December 2007 Stem cell research was the major medical and science story this past year, topping the list of achievements that experts say might finally lead to cures for many diseases. Meanwhile, global health officia
VOA常速英语2007年（十二月）
WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi
英语新闻