[网络] 粒径量测器;激光粉尘监视器;雷射粉尘监视器

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

发表于:2018-12-08 / 阅读(55) / 评论(0) 分类 VOA常速英语2008年(四月)

NGO Dispute Means Fewer Monitors for Egypt Vote Egypt's historic presidential campaign comes to a close with the first round of voting to choose a new civilian leader. The Elections Commission says there will be monitors from the Arab League, the Afr

发表于:2019-01-13 / 阅读(41) / 评论(0) 分类 VOA标准英语2012年(五月)

By Cathy Majtenyi Sudan's foreign minister says he and British Foreign Secretary Jack Straw have agreed to support an increase in the number of African Union monitors in the troubled area of Darfur. A

发表于:2019-01-30 / 阅读(43) / 评论(0) 分类 VOA2004(下)--新闻盘点

By Michael Drudge London 14 March 2006 Israeli soldiers guard blinfolded Palestinian prisoners The British government says American and British monitors at a West Bank prison had to be withdrawn becau

发表于:2019-01-31 / 阅读(100) / 评论(0) 分类 2006年VOA标准英语(三月)

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

发表于:2019-01-31 / 阅读(73) / 评论(0) 分类 VOA常速英语2007年(十一月)

European Union foreign ministers expressed support Wednesday for sending monitors to supervise a cease-fire in the breakaway Georgian region of South Ossetia, which Georgia claims is already being violated by Russia. Lisa Bryant has more from Paris.

发表于:2019-02-06 / 阅读(51) / 评论(0) 分类 VOA标准英语2008年(八月)