单词：stability of vibration test
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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. If you have a dog, you know you gotta walk it. But do you know how it walks? Well, if you have no idea which foot Fido puts forward when, youre in good c
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. When we think about how to represent sound visually, most of us probably picture those volume-dependent sine waves. But thats not how John Stuart Reid
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By Paul Sisco Washington, DC 16 June 2006 watch Electronic Stability report A study released in the United States this week says putting electronic stability controls on new motor vehicles would significantly reduce fatalities. ---------------------
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AS IT IS 2014-09-03 Virginia Site Tests Drones for FAA Rules 维吉尼亚测试无人机以帮助航空管理局制定发展规则 The Federal Aviation Administration, or FAA, has chosen a university town in Virginia as one of six places to test dron
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今天我们要学的词是stability。 Stability, 是稳定的意思。Political stability, 政治稳定；economic stability, 经济稳定。时代周刊2007年的年度人物是俄罗斯总统普京。时代周刊对普京的评价是，He stands,
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By Luis Ramirez Bangkok 17 September 2007 One year has passed since the Thai military overthrew the government of Prime Minister Thaksin Shinawatra on grounds it was corrupt. The interim government is making good on promises to return the country to
2007年VOA标准英语（九月）