单词:airborne laser target tracker
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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
From the jungle beyond us came the sound of splashing water. Tigers play in water. 我们前方的森林传来了哗啦哗啦的水声,老虎在水中嬉戏。 Was it the tiger or was it the herd of wild cattle we had seen the day before? 这是老虎
EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can
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 What's Trending Today. You can now follow the bears in California's Yosemite National Park online. No, that does not mean the bears now all have Twitter profiles. But they are connected to the internet via satellite. They have their own websi
My cooking has always been the target of family jokes. One evening, as I prepared dinner a bit too quickly, the kitchen filled with smoke and the smoke detector went off. Although both of my children
Tracking Santa with Technology Technology can bring magic to the Christmas season and some fun too! Internet users can find out if they are naughty or nice, follow Santa's journey, and play fun Christmas games. Portable North Pole People can make onl
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
According to the latest research, vehicles, coal-burning, airborne dust and industrial production account for 85 to 90-percent of the major airborne pollution sources in most Chinese cities. Vehicles are the biggest polluters in Beijing, Hangzhou, Gu
BEIJING, March 5 (Xinhua) -- China maintains its 2013 gross domestic product (GDP) growth target unchanged at around 7.5 percent this year to leave some leeway for economic restructuring, according to a government work report to be delivered by Premi
My cooking has always been the target of family jokes. One evening, as I prepared dinner a bit too quickly, the kitchen filled with smoke and the smoke detector went off. Although both of my children had received fire-safety training at school, they
雾霾 haze; 烟雾 smog; 空气污染指数 air pollution index; 橙色预警 orange alert; 悬浮颗粒物 airborne particulate matter; 可吸入颗粒物 inhalable particle; 有毒物质 toxic substance; 空气质量检测 air quality monitoring; 实