单词：sonic and ultrasonic radiation (medical uses)
单词：sonic and ultrasonic radiation (medical uses) 相关文章
[00:03.84]第四部分 在泌尿科门诊 [00:07.68]1.How long has this been going on? [00:21.00]这种情况有多久了? [00:34.32]2.Does it hurt when you pass water? [00:47.95]小便时有痛感吗? [01:01.57]3.How often do you usually pass water? [01:12.15]你通常每天小便
医疗服务英语
Doctors use X-rays to view internal organs, obtain clear images of possible disease and to treat cancer. For years radiation has been used to save lives, but there is growing concern that some patients are getting more than they ask for when they und
VOA标准英语2010年(一月)
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Chernobyl Disaster Leads to Advances in Science, Medicine The accident at the Chernobyl nuclear plant did much more than change the lives of hundred thousands of affected people. It also contributed greatly to Western science. Physicists and medical
VOA标准英语2011年(四月)
Compared to the dose level of a medical chest x-ray, a backscatter scan is thousands of times lower. Since the Christmas Day attempted bombing of a U.S. airliner, airports are looking for ways to tighten security. One method being adopted by some and
VOA标准英语2010年(三月)
Lockheed Martin says it's developing a Mach 6 aircraft that would be faster than any other fighter jet. 洛克希德马丁公司日前宣布，该公司正在研发一款速度可达6马赫、比其它所有飞机都快的战斗机。 Called the Hype
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