单词:atmospheric propagation of high energy laser
单词:atmospheric propagation of high energy laser 相关文章
Without air, there would be no fire. There would be no cars or trucks, since motors need air in order to work. Without air, there would be no wind or clouds. There would be no weather, as we know it.(
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
FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today, we will tell about a new cancer treatment and a study of the disease malaria. We will tell about the possibility of drier con
Sometimes it is hard to see the light, especially it lies in the invisible spectrum, like ultrared, ultraviolet radiation. But if you long to see the unseeable, you might interested to hear that under certain conditions people can catch a glimpse of
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
From VOA Learning English, this is the Education Report. A group of students from Kenya was among winners of the 2017 Zayed Future Energy Prize. The 10-member team is receiving a $100,000 award to make their school a green energy institution. The Zay
This is Valentines Day and this morning, we have a few words about love and money. According to research from a major credit card company, the average man spends about $130 on his sweetheart. Women, spend about half that. For people who want to spend
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 go from the sci
EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: 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
STEVE EMBER: Im Steve Ember. FAITH LAPIDUS: And Im Faith Lapidus with EXPLORATIONS in VOA Special English. This week, we tell about one of the most recognizable objects in science fiction the laser. And we tell how the laser has made its mark in the
AS IT IS 2014-07-10 Plastics Blamed for Harm to Sea Environment 塑料对海洋环境造成严重危害 A new report says plastics are responsible for $13 billion in damage to the oceans and the undersea environment. The findings were announced recen
Last month, Washington, D.C., opened a new kind of trade school of which it is immensely proud. This is not one of the old-fashioned vocational schools that taught literal nuts-and-bolts repair work or hands-on career training in fields like auto re
Energy Production Facing Limits of Water Scarcity发电面临用水危机 Nearly all forms of energy production use large amounts of water. Coal, which generates nearly 50 percent of the electricity in the U.S., needs water for mining and transport,
US Energy Production Facing Limits of Water Scarcity Nearly all forms of energy production use large amounts of water. Coal, which generates nearly 50 percent of the electricity in the U.S., needs water for mining and transport, and to cool and lubri
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 go from the science of the future to eve
WASHINGTON, June 23 (Xinhua) -- Last month was the hottest May since record keeping began in 1880, the U.S. National Oceanic and Atmospheric Administration (NOAA) said Monday. 图片1 The combined average temperature over global land and ocean surfac
如今,高端大气上档次已经成为众人耳熟能详的网络用语,凭借其无与伦比的受欢迎度,高端大气上档次一度位居十大网络用语的榜首。这句让无数互联网迷们捶足顿胸的潮流时尚用语,到底
Science and technology 科学技术 Solar power from space 太空太阳能 Beam it down, Scotty 老兄,传下来吧 Harvesting solar power in space, for use on Earth, comes a step closer to reality 在太空获取太阳能以供地球之用:梦想距
The atmospheric pressure as we climb is getting so low 气压在逐渐减小 that without any air supply,I'd be unconscious within 20 seconds. 如果不戴呼吸器 不用20秒我就会休克过去 I have to breathe 100% oxygen to avoid getting nitro
16.The early railroads were........the existing arteries of transportation: roads,turnpikes, canals,and other waterways. A.those short lines connected B.short lines that connected C.connected by short lines D.short connecting lines 答对率:50% 答案