单词:stress rupture testing machine
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HEALTH REPORT-Testing for Pre-Diabetes By Nancy Steinbach Broadcast: April 17, 2002 This is the VOA Special English Health Report. American health experts say more people should be tested for a condit
You know, I think there is a certain measure of uncertainty that exists here and in the Gulf Coast as well. Uncertainty as to whether New Orleans will really come back to the way it was. And I'm alway
Every two weeks, on the full and new moons, the sun, moon and Earth fall along a nearly straight line. The combination of gravitational forces in this arrangement creates large swings in the tides. But the celestial alignment affects more than the oc
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This is Scientific American's 60-Second Science, I am Karen Hopkin. This will just take a minute. Bubbles. Big ones entertain children and tiny ones tickle champagne aficionados. Even witches appreciate what they bring to a boiling cauldron. If you,
An American has been formally charged with five criminal counts in connection with the failed car bombing last weekend in New York City. Attorney General Eric Holder says charges involve terrorism and use of weapons of mass destruction. NPR's Dina Te
Improve Your English by Testing Yourself English learners can improve their ability to remember and use new words by testing themselves. This idea comes from Sarah Lynn, an educational consultant and teacher at Harvard University's Bridge Program. Sh
A little more than a year after the Kenyan and U.S. governments launched a nationwide HIV home testing program in Kenya, some counselors in the program say they are feeling overwhelmed. They cite harsh conditions in the field, conflicts in the homes
The goal of rapid HIV testing in emergency rooms is to save lives and prevent the spread of HIV. The U.S. Centers for Disease Control recommends routine HIV screening of patients admitted to hospital emergency rooms, unless the patient refuses or opt
But my response to this robot was also interesting because I knew exactly how this machine worked, 但我对这个机器人的反应也非常有趣,因为我确切地知道这个机器工作的原理, and yet I still felt compelled to be kind to
SCIENCE IN THE NEWS - Stress: What It Can Do to Us, What We Can Do About It By Cynthia Kirk Broadcast: Tuesday, May 17, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm
Science and Technology Seismology and tsunamis Making waves 科技 地震学与海啸 掀起新浪潮 A better tsunami-prediction system is now under development 更精准的海啸预测系统现已在开发中 GEOLOGISTS have long known that some ma
Science and Technology Seismology and tsunamis Making waves 科技 地震学与海啸 掀起新浪潮 A better tsunami-prediction system is now under development 更精准的海啸预测系统现已在开发中 GEOLOGISTS have long known that some ma
EDUCATION REPORT - Educational Testing Service Begins New TOEFL Test By Nancy Steinbach Broadcast: Thursday, October 13, 2005 I'm Shep O'Neal with the VOA Special English Education Report. Last month,
BEIJING, July 28 (Xinhua) -- Mazda will recall 845,761 vehicles in China due to defective airbags, according to the General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) Thursday. The affected vehicles include 822,560 Mazda
LONDON, April 11 (Xinhua) -- The Olympic Torch has passed rigorous testing to ensure even the worst of Britain's weather will not be able to put it out, the Evening Standard newspaper said Wednesday. Two prototypes withstood 50mph winds, extreme temp
The Large Hadron Collider, the world's most powerful atom smasher, has gotten under way. Physicists at the European Organization for Nuclear Research, CERN, in Geneva successfully injected the first beam of particles into this colossal multi-billion
Eleven Ways to Reduce Morning Stress Lose an hour in the morning, and you will be all day hunting for it.Richard Whately Mornings can be the most stressful part of our day if we fail to manage our time and health needs appropriately. Many of us deal
An independent panel of U.S. health experts is recommending that all Americans between the ages of 15 and 65 be routinely screened for HIV, the virus that causes AIDS. The HIV test would not be mandatory. But experts hope more widespread testing migh