单词：laser optical video-disc
单词：laser optical video-disc 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
VOA常速英语2008年（四月）
[00:00.00]MODULE THREE [00:06.87]第三模块 [00:13.74]Research [00:13.78]调查 [00:13.81]Unit one [00:15.85]第一单元 [00:17.89]I'm looking for information. [00:19.42]我正在寻找信息 [00:20.94]1.Look,listen and learn [00:22.02]1。看，听
北外版新标准小学英语第六册(三年级起点)
This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Whether it's for streaming Netflix or sharing files, we're gobbling up more and more dataand we want it faster. But even shooting data with lasers over fiber-o
Scientific American(五)月
[00:00.00] MODULE THREE [00:13.84]Research [00:15.78]Unit one [00:19.96]I'm looking for information. [00:23.04]1.Look,listen and learn [00:33.99]A:Come here, Lingling. [00:36.81]Mum has bought a new computer for us. [00:40.15]This is the keyboard. [0
新标准小学英语第五册（三年级起点）
By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti
VOA常速英语2007年（十一月）
China's Tibet Autonomous Region is about to achieve a universal coverage of fibre-optical broadband service ahead of its schedule. As China further rolled out its universal broadband project, Tibet's broadband service is looking to reach 98% of admin
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