Fuel Cell Cost-Cutting

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

2007年NPR美国国家公共电台一月-A Broken Foot, an Artificial Leg, and a R

Recording technology has changed a lot over the years, but you can still do one essential thing. You sit in front of a microphone and you tell a story, which here we are again this Friday morning because it's time for StoryCorps. It's an oral history

闭着眼睛飘单词 四级词汇5

[0:0]arithmetic arouse arrange算术 引起,唤起 安排,准备 [0:37.8094]arrest artificial artistic aspect逮捕,拘留 人工的,人造的 艺术的,美术的 方面,面貌 [1:31.0307]assemble assembly assess asset混合,聚集 立法机构,议会 对...估价 人价值的,优点 [2:22.6436]as

创新英语-Scientists Create Energy-Making Artificial Leaf

Scientists at the Massachusetts Institute of Technology (MIT) have created what could be a breakthrough in providing clean, alternative energy. Researchers have invented an artificial leaf that splits water into hydrogen and oxygen and stores the ene

柯灵思英语-英语听力高手38

柯灵思英语-英语听力高手38

VOA标准英语2015--Researchers Create Artificial Skin With Sense of Touch

Researchers Create Artificial Skin With Sense of Touch Scientists have recently made considerable gains in creating human-like artificial limbs, but they still look and feel artificial. That could change with a development from South Korea. Researche

新目标初中英语九年级--Unit 7 Where would you li

Unit 7 Where would you like to visit? [00:04.88]SECTION A [00:07.84]1b Listen.Where would San,Gina,and Lydia like to go on vacation? [00:17.71]Why?Fill in the chart. [01:00.55]2a Listen and number these statements in the order that you hear them. [01

国家地理-2008-05-24 Fuel Cell 聚焦燃料电池

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

60秒科学:Artificial Muscle Brings Back Blink

Artificial Muscle Brings Back Blink A study in the Archives of Facial Plastic Surgery reports the development of an artificial muscle system that could restore the ability to blink to stroke and injury patients. Cynthia Graber reports Most of us blin

专业术语—基因专业词汇H

H 单倍体 haploid haploinsufficiency 造血干细胞 hematopoietic stem cell 血友病 hemophilia 杂合子 heterozygous 高度保守序列 highly conserved sequence Hirschsprung病 Hirschsprung's d

人体医学专业英语词汇(2)

伪足( 吞噬作用 ) pseudopodium / pseudopodia ( phagocytosis ) 假肋 false rib ( ribcage ) 假声带( 声带 ) false vocal cord ( vocal cord ) 做梦 dreaming 偏头痛 migraine 副甲状腺 parathyroid gland 副甲状腺素( 副甲状腺 ) parathyroid hormone / PTH ( parath

Artificial Leaf Turns Sunlight into Electric Power

Scientists at the Massachusetts Institute of Technology have turned to Mother Nature for inspiration, inventing a device that mimics photosynthesis, the process plants use to convert sunlight and water into usable energy. MIT chemistry professor Dani

VOA标准英语2011--Artificial Blood Vessels Work Well, Have

Scientists say they have successfully tested artificial blood vessels grown in the laboratory. In a heart bypass operation, surgeons typically remove a vein from a patient's leg and use it to replace blocked arteries that feed the muscles of the hear

VOA常速英语2008年-Rat Study Links Weight Gain to Artificial Sweet

By Melinda Smith Washington, DC 15 February 2008 Obesity is becoming a worldwide problem, even in developing countries. But diet drinks and food prepared with sugar substitutes do not seem to help curb people's appetites. Now a new study may provide

学个词Learn a Word 第1713-artificial

今天我们要学的词是 artificia。Artificial 人造的。artificial intelligence 人工智能。不久前，The FDA approved a new artificial retina device that would help some people regain part of their sight. 美国食品和药物管理局批准

VOA常速英语2008年-FCC Approves Cell Phone Alert System

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

Researchers make sperm from stem cell in dish

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

Turn Off Your Cell Phone 关掉你的手机

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

VOA标准英语2011--Artificial Speech Mimics Real Thing

Artificial Speech Mimics Real Thing 合成声音发展渐入佳境 未来虚拟声音真假难辨 At a University of Arizona laboratory, Professor Brad Story analyzes the voices of singers, actors and public speakers both live and on audio tape. 在亚

U.S. researchers discover human lung stem cell

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