单词:target illuminating laser radar
单词:target illuminating laser radar 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 Terminal High Altitude Area Defense or THAAD is a missile defense system. It uses missile to stop missiles. And the U.S. has deployed the first components of a THAAD system to South Korea. Why? Because North Korea, which is a rival of both the So
By Al Pessin Washington 01 September 2006 The U.S. Defense Department says it conducted a successful test of its land-based ballistic missile defense system on Friday. Officials say a missile launched from California intercepted a target missile fro
AZUZ: If you`re scared of lightning, this will make you jump. A National Weather Service technician was recording a recent storm. He was indoors where we should be during a thunderstorm. But this was a little close. 如果你害怕闪电,这会让你
Every year satellites are damaged or destroyed by objects orbiting the Earth's atmosphere. An Australian company is now using the latest laser technology to track these objects in order to reduce cosmic damage. Li Dong has the details. Even in space,
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