单词：high altitude ir sensor system (haiss)
单词：high altitude ir sensor system (haiss) 相关文章
Technology Report - Nigeria Launches First African-Built Satellite 科技报道 - 尼日利亚发射首颗非洲自行研制卫星 This is the VOA Special English Technology Report. 这里是美国之音慢速英语科技报道。 Nigeria has launche
2011年VOA慢速英语(十)月
W: Have you ever heard of human cloning? M: Yes, but human cloning is banned in America. W: I think its a good idea to create cloned babies for the infertile couples. M: Human cloning will lead to a series of ethical problems. Any way I strongly obje
流利美国口语
Foldable white canes help the visually impaired navigate their surroundings, but the guide stick's tactile (preceptible by touch or apparently so) nature offers only so much information. The cane's user must manually find and avoid obstructions, but
2015年Scientific American(五)月
In 1940, North American Aviation designed the legendary P-51 Mustang in response to the British need for a high-performance fighter aircraft. The Mustang featured the most advanced laminar flow wing and a ducted cooling radiator positioned under the
国家地理2007年
Why Does Altitude Cause Headache? Mountain climbers face many dangers as they brave the cold winds and icy slopes and jagged cliffs of the peaks they climb. But one of the most serious dangers they face is all in their headsliterally. Why does altitu
英语听力文摘 English Digest
One of the most popular tools on Apple's new iPhone X is its facial recognition system. This latest iPhone gives users the power to open the device just by looking at it. The smartphone has performed well in tests set up to trick it into opening for
2017年VOA慢速英语(十一)月
Two pilots recently set a new altitude world record for gliders. A glider is an aircraft that does not have an engine. They are pulled into the air by powered airplanes and then released. They are designed to ride warm, rising air to gain altitude. T
2017年VOA慢速英语(九)月
Smart Farm Technology Tracks Behavior of Cows Artificial intelligence (AI) has arrived on the farm. A Dutch company has developed technology to follow the movements and activities of cows. The high-tech system, powered by AI and motion sensors, is ca
2018年VOA慢速英语(四)月
UnderseaCableCouldRevolutionizeOceanography This past April, there was a big volcanic eruption in Americas Pacific Northwest. If you missed it, you're not alone. It happened under the ocean off the northern Oregon coast. Since then, several research
VOA标准英语2011年(九月)
This is IN THE NEWS in VOA Special English. Ayatollah Ali Khamenei speaking Friday, in an image from Iranian state broadcaster IRIB Iran's top leader has demanded a stop to protests over the disputed presidential election. (SOUND) Ayatollah Ali Kham
VOA慢速英语2009年（六）月
AS IT IS 2016-05-22 Storm-Chasing Drones Help Fight Extreme Weather 使用无人机追踪风暴 对抗极端天气 Some countries are using drone technology to prepare for major weather events and observe severe storms as they happen. One place where
2016年VOA慢速英语(五)月
U-2 Spy Plane Still Flying High One of the oldest planes the United States Air Force still flies is used to carry out some of America's most sensitive and critical missions. Whether it's aiding NATO troops in Afghanistan, providing surveillance over
VOA标准英语2011年(十二月)
Experts Recommend Screening Newborns for Heart Defects One of the scariest things a new parent can hear is, your baby has a birth defect. But some of the most dangerous birth defects are are invisible ones, such as deformities in the baby's tiny hear
VOA标准英语2011年(八月)
It had been another hot spring day. By ten oclock in the evening, it had only cooled down to 87 degrees, according to Larry's thermometer in the living room. He rarely looked at his thermometer because he usually didn't care what the exact temperatur
365个英语简短小故事
SHENYANG, Aug. 23 (Xinhua) -- China will relax the ban on the use of low-altitude airspace across the country starting in 2013, the country's air traffic authorities said Thursday. A series of reforms will be implemented in five to ten years, creatin
英语新闻
US High School Students Shine in Prestigious Science Competition Twenty U.S. high school students were in Washington, D.C., this week squaring off in one of the nations premier science research contests. The prize: a half million dollars in college s
VOA标准英语2011年(十二月)
World-Class Runners Flock to Kenyan Town Lornah Kiplagat is a Kenyan-born athlete who has won marathons throughout the world and holds several world records. She and her husband Pieter founded the High Altitude Training Center in Iten, Kenya, after r
VOA标准英语2012年(二月)
Sudden snowfall earlier this week blocked a national highway in Xinjiang Uygur Autonomous Region. The local traffic control department worked nearly 20 hours to clear the snow, and traffic in the area has now returned to normal. The snow started arou
cctv9英语新闻2015年
Cosmic Radiation 上世纪早期，科学家发现一种神秘的辐射形式会破坏他们的实验。后来奥地利物理学家Victor Hess研究发现辐射可能来自天空。后来他多次坐热气球用各种仪器（包括测量放射电荷的
英语听力文摘 English Digest
年底啦，如果你在计划过年去哪儿玩或是明年的出国游，不如看看权威旅游刊物Lonely Planet推荐的2017年十大旅游目的国！这些地方，好玩儿、人少、又不贵！跟Jenny, Spencer一起体验吧！ 关键词：
美国文化脱口秀