单词：Benard convection cells
单词：Benard convection cells 相关文章
Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi
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Workers Use Vacation Time to Explore New Careers 美国人利用假期体验新职业 Doing the same thing day after day can make even successful professionals unhappy, prompting dreams of doing somet
VOA2005（下）--社会新闻点评
Evidence is seen for a possible cause of solid tumors, but many questions remain. Transcript of radio broadcast: 24 June 2008 This is the VOA Special English Health Report. Some experts predict that doctors will someday use stem cells to treat many
VOA慢速英语2008年（六）月
An international team of scientists at a U.S. university is investigating whether 'cooking' cancerous tumors using tiny nanoparticles in a magnetic field might be an effective and useful treatment. Preliminary findings suggest they may be on the righ
VOA标准英语2010年(十一)月
Norm woke up to go to the bathroom. He looked in the bathroom mirror. That bump used to be smaller. It was on the side of his nose. The bump looked puffy. He touched it. It wasn't hard. It didn't hurt. It wasn't a different color. Maybe it was just s
原版英语小短文
From NPR News in Washington, I'm Craig Windham. President Obama says the new federal budget proposal he has sent Congress today would bring down the massive budget deficit steadily over the next decade. But Mr. Obama says the budget includes measures
2010年NPR美国国家公共电台2月
英语短文：Cells and Temperature Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow ra
英语小短文
Bored at work? Try suing your employer. 工作感到无聊？那就起诉你老板吧。 That's what Parisian Frederic Desnard is doing. He has taken his former employer Interparfums to court because his job was too boring. 巴黎的弗莱德里克登纳
阅读空间
FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. CHRISTOPHER CRUISE: And Im Christopher Cruise. Today, we will tell about possible hope for children suffering from damage to their nervous system. We will also tell
2011年VOA慢速英语(二)月
'Serial Killer' Cells Demolish Leukemia Tumors U.S. researchers say they've been able to modify a patient's immune system T cells, turning them into serial killer cells which zero in on cancer and obliterate it. Its being called a breakthrough in the
VOA标准英语2011年(八月)
Volunteers Help Scientists in Search for Cheap Solar Cells Most of today's solar cells are silicone-based and their manufacture requires sophisticated machinery and expertise. An average home in the United States uses between 20 and 24 kilowatt hours
VOA标准英语2013年(七月)
RACHEL MARTIN, HOST: Before Christopher Scott went to prison, he led a quiet life, spending as much time as possible with his sons. CHRISTOPHER SCOTT: In the place that I lived at, we had, like, a pond, so I used to take my two boys out and go feed t
2017年NPR美国国家公共电台11月
Australian researchers may have discovered a new way to treat hearing loss in infants. And the secret lies in the NOSE. Our reporter Li Dong has the details. Noses comes in all shapes and sizes, and Australian scientists are now trumpeting a new use
世界各地新闻集锦
Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o
60秒科学
> 39 脂肪中的茎细胞有助于治疗糖尿病 DATE=4-26-01 TITLE=SCIENCE REPORT- Stem Cells in Fat BYLINE=Nancy Steinbach (Start at 59
科技之光
HEALTH REPORT - Fetal Skin Cells May Treat Burns By Caty Weaver Broadcast: Wednesday, September 21, 2005 I'm Shep O'Neal with the VOA Special English Health Report. A method tested in Switzerland may
健康与经济
Weddings are a sacred ritual and formal expression of love between two people promising to spend the rest of their lives together. 婚礼是一种神圣的仪式，它表达了两个人要携手余生的决心。 And as such, the importance of such a
英语新闻
In Conversation with Didier Drogba and Herve Renard FRI 27 NOV 2015 Didier Drogba gives us dressing room secrets from his time at Chelsea
英语听力精选进阶版
The hour hand on a clock moves about ten thousand times faster than the flowing rocks of the mantle. 钟面上时针的移动速度，比地幔岩石的流动速度，要快大约1万倍。 The movements occur not just laterally as the Earth's plates
万物简史
STEVE INSKEEP, HOST: Now that we're past Valentine's Day, we can tell this story about sharing. You know, people try to share things when they love each other, including passwords for their video and music streaming services. But what happens when th
2019年NPR美国国家公共电台2月