单词：dark spot defect of laser
单词：dark spot defect of 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
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By Naomi Schwarz Dakar 11 September 2007 An ex-sergeant of the Nigerien Army says he and more than 10 other former soldiers have joined the rebel movement, Niger Movement for Justice. He is calling on all soldiers to refuse to put themselves in dange
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AS IT IS 2016-04-13 North Koreans Defect to South Korea South Korea says a high-ranking North Korean military officer defected to South Korea last year. South Koreas defense and unification ministries made the announcement Monday in Seoul. The unific
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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
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瘦成闪电的擦妈 Christina Aguilera 发布《Let There Be Love》歌迷版MV！歌迷们在MV里欢乐地传达出各种各样爱的信息，并且加入了擦妈在日常工作中的一些有趣片段，歌迷与歌手不再相隔甚远，相互支
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