单词：laser safety standard
单词：laser safety standard 相关文章
By Carol Pearson Washington 30 April 2008 Ten years ago, the U.S. Food and Drug Administration approved LASIK, eye surgery with a laser that enables people to see without glasses. But about five percent of LASIK procedures fail, and those patients ca
VOA常速英语2008年（四月）
Strictest Car Crash Standard Put into Use in China Among seven tested car models, three were graded five-star including Mazda's Atenza, Ruiteng from SAIC Motor and Great Wall Motor's Haval, while three others were rated four star and one three star.
2015CRI中国国际广播电台
By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti
VOA常速英语2007年（十一月）
标准名称Code Standard Name Fire Prevention Code防火规范 Uniform Fire Code, 2003 Edition （incorporates provisions from both the Fire Prevention Code and the WFCAs Uniform Fire Code）统一消防规范 2003版 Standard for Portable Fire Extinguishers手提灭火
英文语法词汇
Among seven tested car models, three were graded five-star including Mazda's Atenza, Ruiteng from SAIC Motor and Great Wall Motor's Haval, while three others were rated four star and one three star. This is said to be the strictest assessment imposed
英语新闻
今天我们要学的词是gold standard。 Gold standard, 意思是同类事物的最高标准。 The iPhone is the gold standard in the smartphone market, iPhone是智能手机市场上最棒的产品。曾带领加州大学洛杉矶分校十次赢得
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