单词：band-gap laser action
单词：band-gap laser action 相关文章
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
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[00:00.00]Man Is to Survi [00:02.43]With the rapid development of civilization,people are getting manyby-products [00:08.72]Sprawling cities provde us with the finest comforts at the cost of occupying more farmlan [00:16.40]modern factories provide u
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[00:00.00]Global Shortage of Fresh Wat [00:03.53]Fresh water seems to be inexhaustible.Every day,as soon as the tap is turned on,water will run endlessl [00:13.40]Besides,we can get fresh water in rivers and well [00:17.48]So,some people don't treasu
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[00:00.00]Haste Makes Was [00:02.98]Haste Makes Was [00:05.83]This is a proverb full of logi [00:09.51]If we are to accomplish anything,we must do it step by ste [00:15.05]If we hope to achieve our desired goal,we have to do some solid,steady ,and do
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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
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Many musicians are turning to new forms of technology to reach more people through their smartphone and electronic devices. Performers are using virtual reality (VR), 360-degree cameras and other tools in hopes of providing the best musical experienc
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