单词:bluish-green argon laser
单词:bluish-green argon 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
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
This is Scientific American 60 Second Science, I am Karen Hopkin, this will just take a minute. Every year, about 10 million tons of paper winds up in American landfills and incinerators, which is not only wasteful but adds CO2 to the atmosphere. Rec
BBC Learning English 6 Minute English Jargon Busters Yvonne: Hello, this is '6 minute English' - I'm Yvonne Archer William: And I'm William Kremer. Hello! Yvonne: Thanks for joining me, William! Now today, we're going to do a bit of glossing, play i
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
在汉语中,颜色的表达有太多太多啦,可是大家知道他们在英语词汇中如何表达吗?一起来看看吧~ 英语分类词汇 Acid blue 湖色 Amber 琥珀色 Amethyst 紫水晶色 Antique 古紫色 Apple green 苹果绿 Apric