大光(学谐振)腔激光器

VOA常速英语2008年-US Government Reviews Laser Eye Surgery

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

发表于:2018-12-08 / 阅读(171) / 评论(0)

VOA常速英语2008年（四月）

电信术语(1)

序号中文英文术语解释缩写来源 1 光时域反射法（OTDR），向后散射法 OPTICAL TIME DOMAIN REFLECTOMETRY，BACKSCATTERING TECHNIQUE 靠光脉冲传输通过光纤，测量返

发表于:2018-12-08 / 阅读(221) / 评论(0)

电信英语

VOA慢速英语2013 EXPLORATIONS - The History of the Laser

EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can

发表于:2018-12-16 / 阅读(163) / 评论(0)

2013年VOA慢速英语(二)月

SSS 2011-05-23

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

发表于:2018-12-24 / 阅读(193) / 评论(0)

Scientific American(五)月

赖世雄英语新闻听力通第56期:医生取出巨无霸肿瘤

(CAIRO, Reuters)Egyptian doctors have successfully removed a 100-pound tumor from the stomach of a 17-year-old girl. （路透社开罗电）一群埃及医师日前成功地从一名十七岁女孩的胃里取出一颗重达一百磅的肿瘤。 Doc

发表于:2018-12-28 / 阅读(145) / 评论(0)

赖世雄英语新闻听力通

英语博客：A shell from Hawaii.

I have something pretty that sits on my windowsill in my kitchen. It's a shell from Hawaii. I'm not sure what kind of shell it is, or what it is called, but it certainly is something that I love to look at. My mother brought it back from her recent t

发表于:2019-01-01 / 阅读(197) / 评论(0)

英语博客 A cup of English

Watch the US Navy’s New Laser Weapon in Action

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

发表于:2019-01-02 / 阅读(177) / 评论(0)

2017年VOA慢速英语(七)月

电信术语(2)

序号中文英文术语解释缩写来源 21 光接入网 optical access network 由光传输系统支持的共享同一网络侧接口的接入连接的集合。OAN可以包含与同一OLT相连

发表于:2019-01-03 / 阅读(207) / 评论(0)

电信英语

电信术语(6)

序号中文英文术语解释缩写来源 101 操作维护中心 Operation and Maintenance Center OMC YD/T 1221.1-2002 102 光分插复用器 Optical Add/Drop Multiplexer OADM YD/T 1205-2002 1

发表于:2019-01-08 / 阅读(205) / 评论(0)

电信英语

电信术语(7)

序号中文英文术语解释缩写来源 121 出接口 outcoming interface oif YD/T 1177-2002 122 操作维护应用部分 OMAP YD/T 1180-2002 123 开放系统互连 OSI YD/T 1180-2002 124 光放

发表于:2019-01-08 / 阅读(191) / 评论(0)

电信英语

电信术语(9)

序号中文英文术语解释缩写来源 161 光配线网 Optical Distribution Network ODN YD/T 1250-2003 162 光线路终端 Optical Line Termination OLT YD/T 1250-2003 163 光网络单元 O

发表于:2019-01-08 / 阅读(198) / 评论(0)

电信英语

VOA标准英语2013--The History of the Laser

The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci

发表于:2019-01-12 / 阅读(228) / 评论(0)

2013年VOA慢速英语(五)月

VOA慢速英语2012--The Laser: Futuristic Science Found at Your Local Store

EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: Welcome to EXPLORATIONS in VOA Special English.Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one

发表于:2019-01-12 / 阅读(195) / 评论(0)

2012年VOA慢速英语(一)月

VOA常速英语2007年-Scientist in Texas Runs NASA's Lunar Laser Prog

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

发表于:2019-01-31 / 阅读(208) / 评论(0)

VOA常速英语2007年（十一月）

电信术语(14)

序号中文英文术语解释缩写来源 261 操作和维护 Operation Maintenance O＆M YD/T 883-1999 262 操作维护和管理 OAM YD/T 997-1999 263 操作维护中心 Operation Maintenance

发表于:2019-02-01 / 阅读(288) / 评论(0)

电信英语

电信术语(13)

序号中文英文术语解释缩写来源 241 光线路终端 OLT YD/T 1090-2000 242 光网络终端 ONT YD/T 1090-2000 243 光网络单元 ONU YD/T 1090-2000 244 操作系统 OpS YD/T 1090-20

发表于:2019-02-01 / 阅读(266) / 评论(0)

电信英语

电信术语(12)

序号中文英文术语解释缩写来源 221 开放系统互连 Open System Interconnection OSI YD/T 1280-2003 222 操作维护中心 OMC OMC YD/T 1079-2000 223 帧失步秒 Out-of-Frame Seco

发表于:2019-02-01 / 阅读(296) / 评论(0)

电信英语

电信术语(11)

序号中文英文术语解释缩写来源 201 光回损 Optical Return Loss ORL YD/T 1274-2003 202 光信噪比 Optical Signal to Noise Ratio OSNR YD/T 1274-2003 203 光监控通路 Optical Su

发表于:2019-02-01 / 阅读(275) / 评论(0)

电信英语

2018年CRI Tibet to have universal fibre-optical broadband service

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

发表于:2019-02-14 / 阅读(244) / 评论(0)

2018CRI中国国际广播电台

Lesson 27-2:Health2 健康2

Listen to the patients' questions to a doctor.Check the correct answers that the doctors may response. 1.What caused my stomachache? 2.Do I need to take medicine? 3.What is this d rill for? 4.Is the cavity serious? 5.Can you do something about the ca

发表于:2019-02-17 / 阅读(172) / 评论(0)

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acanticone

act the giddy goat

alignment requirenent