单词：multiple refraction
单词：multiple refraction 相关文章
The Blurry World Underwater When you open your eyes underwater, things look blurry, but with goggles, everything looks perfectly clear. Why cant we landlubbers focus underwater without goggles? First, we need to explore how our eyes focus when were h
英语听力文摘 English Digest
Vicious weather in the southern plains. Two deadly tornadoes swirling in unison in southern Oklahoma. All of it caught on tape. There comes one right there. Look at them. They are all over. As you can hear, storm chasers were only reporters because i
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British scientists have found a drug used to fight leukemia that appears to stop multiple sclerosis in its early stages and restore lost function to patients. Although still in the clinical trial phase, it is being called by some, the most promising
VOA标准英语2008年（十月）
日本富士通实验室的研究人员开发了一种无线充电系统，可同时给一定范围内的手机、数码相机及手提电脑等各种移动设备充电，无需使用电缆。该系统最早可于2012年正式推出使用。该系统被
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By Anjana Pasricha New Delhi 28 April 2008 India has launched a record number of satellites into space in a single mission. The launch marks a milestone for the country's space program. Anjana Pasricha reports from New Delhi, India wants to emerge as
VOA常速英语2008年（四月）