单词：laser infrared radar
单词：laser infrared radar 相关文章
New Laser Heals Wounds Faster, Without Scarring 新激光治疗伤口好的更快且没有疤痕 All surgical patients want their wounds to heal quickly with the least possible scarring. But traditional stitches, clips and more modern chemical glues
VOA标准英语2015年(四月)
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
2015年Scientific American(一)月
中国船只搜寻失踪航班 SOUTH CHINA SEA, March 10 (Xinhua) -- Two rescue vessels sent by the Ministry of Transport (MOT) will conduct parallel search works for the missing Malaysia Airlines flight, said command authorities on Monday. Rescue ve
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This is Scientific American 60 Second Science, I am Karen Hopkin, this will just take a minute. Every year, about 10 million tons of paper winds up in American landfills and incinerators, which is not only wasteful but adds CO2 to the atmosphere. Rec
Scientific American(三)月
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,
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China on track to 12 operational J-20stealth fighters in 2017 for airpower edge over other countries in Asia 中国计划在2017年部署12架J-20隐身战机以取得对其他亚洲国家的空中优势 In July 2016,the Chengdu Aircraft Corporation
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