单词：nondestructive test by ultrasonic method
单词：nondestructive test by ultrasonic method 相关文章
Scientists Create Method to Test Food and Drugs for Purity Millions of people in developing countries have to be on guard against contaminated food and medicine. Some products could be harmful -- even deadly. In Nigeria, brake fluid was found in a pr
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By David McAlary Washington 11 May 2006 Scientists have developed a cheap, rapid test to determine who has trachoma, the leading infectious cause of blindness in poor countries. The researchers say th
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This is the VOA Special English Health Report. Scientists continue to look for ways to deal with the deadly form of bird flu virus. Medical workers care for a bird flu patient in Medan, Indonesia, last year Researchers in Singapore, for example, hav
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By Jessica Berman Washington 12 October 2006 Researchers have developed a new tuberculosis test that makes a diagnosis possible in a fraction of the time it can take using other methods. Experts say the test would be especially useful in the develop
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