单词:gas dynamic mixing laser
单词:gas dynamic mixing 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
Photo: Julie Taboh Cocoa marinated tenderloin of beef is an example of chocolate being paired with other savory ingredients Americans love their chocolate, especially during the holiday season. For Gerri Ratliff, 48, buying chocolate during the holid
Wine mixing调酒 It is the first day of wine mixing class. 今天是调酒训练班上课的第一天。 The teacher asked us to mix a glass of Long Island Tea. 老师要求我们调出一杯长岛冰酒。 I tried to mix different wines, as a resul
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. A new archaeological find may signify one of the great leaps in human cultural and cognitive history. Because researchers have discovered a 100,000-yea
图片1 Muddy, brown water. A couple of wiffle balls. An old, dirty snowman toy. A plastic Dora the Explora figure that has been buried in the earth for over a year. Add to these things a stinky sock and a few sticks, and you have the perfect recipe
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