单词:distributed bragg refector (dbr) laser
单词:distributed bragg refector (dbr) laser 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
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
US Presidential Candidates Woo Iowa Voters Ahead of Key Vote Just a week before the Iowa caucuses, which mark the beginning of the U.S. presidential election process, both Republican and Democratic candidates are rallying for voter support in the sta
今天要讲的三个习惯用语都是和零碎的小东西有关。他们之间的区别只是使用的场合不同,或者是来源不一,用法相近。现在我们就分别为各位讲解这三个习惯用语。他们是:odds and ends, knic
But he would not admit failure. 但是李将军不会认输。 Led by Pickett of Virginia, thirteen thousand men charged across the valley between the two armies directly at the Union center. 在弗吉尼亚人皮科特的带领下,1.3万士兵越过
But Bragg was now greatly strengthened by soldiers from the Mississippi and by Longstreet's division from Lee's army in Virginia. 但是,此时的布拉格得到来自密西西比士兵的补充,也得到朗斯特里特从弗吉尼亚李将军那里
SCOTT SIMON, HOST: Millions of Americans recharge their phones and screens and laptops before they go to bed at night, but do they recharge themselves? Arianna Huffington says we're in the midst of a sleep deprivation crisis that creates anxiety as w
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
中文 英文 缩写 放大 zoom in 放大的随机发射 Amplified Spontaneous Emission ASE 放大自辐射噪声 Amplified Spontaneous Emission Noise ASEN 放电 discharge 放号 number distribution
中文 英文 缩写 不利状态 adverse slate 不连续发送 Discontinuous Transmission DTX 不良磁道 bad track 不良分页 bad page break 不良信息 flame 不良信息饵 flame bait 不良信息
1. Coastal fog has brought hope of relief to firefighters battling Northern California's wildfires. More than 1,400 fires are still burning in that state. The fires were mostly started by lightning storms but quickly spread because of dry conditions
Good evening, everyone. We are coming to you from Oak Creek, Wisconsin, again tonight. There are significant new developments to tell you about in the wake of Sunday's shooting at the Sikh Temple. There is also here in Oak Creek a quiet, ongoing effo
By Cindy Saine Washington, DC 05 July 2006 watch report Bush Troops President Bush spent part of his Independence Day holiday delivering a speech to U.S. troops at Fort Bragg, North Carolina. He thanked them for their courage, and said terrorists ar
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
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
The next morning Grant attacked in his turn and slowly but surely pushed the Confederates off the field. 第二天早晨他反攻南方军,当然,他击退了南方军。 Halleck then united Grant's, Buell's, and Pope's armies and captured Corint
Books and Arts; Book Review; Culture on television; The cruellest cut; 文艺;书评;电视上的艺术;最粗鲁的裁汰; The South Bank Show: Final Cut. By Melvyn Bragg. 《南岸秀:最终裁汰》Melvyn Bragg著。 The South Bank Show
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
The State Grid Corporation of China, the country's largest energy distributor is taking further steps to facilitate the use of distributed power generation. This is an incentive for individuals who have the intention and capability to build their own
THE SCHOOL HEALTH FORMS had been distributed to the students with an error---the word Sex had been spelled with an o. One mother, filling out the form for her son, wrote in the blank next to Sox: Usually brown. 某学校发给学生的健康调查表里