单词：eye protection from laser
单词：eye protection from laser 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）
EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can
2013年VOA慢速英语(二)月
今天我们要讲的一个美国习惯用语是to see eye to eye。Eye是一只眼睛， to see eye to eye，意思是观点一致，意见相同。比如说，联合国的许多成员国都认为应当制止伊朗发展核武器，在这件事上他们
美国习惯用语
The United States Navy has demonstrated a new laser weapon operating in the Persian Gulf. The Laser Weapons System, or LaWS, is deployed on the USS Ponce transport ship. A live test firing of the weapon was recently carried out for Cable News Network
2017年VOA慢速英语(七)月
商业和娱乐的发展给我们的眼睛带来越来越多的问题。过度地看电视、电脑显示器、书和其他设备引起的眼睛疲劳已经成为严峻的问题。 Listen Read Learn The development of business and entertainment has led to increasing numbers of problems for our eyes. Eye stra
英语口语大赢家
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）