单词:radio-frequency spark ion source
单词:radio-frequency spark ion source 相关文章
WHITE HOUSE President Donald Trumps administration wants to shut down U.S. government radio stations that announce official time, a service in operation since World War II. WWV and WWVB in the state of Colorado and WWVH on the island of Kauai in the
A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h
A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the
Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Ryan Geertsma. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 What can this music do to your s
Iknewaguywhoplayedhisradioonlyinthemorning. Whensomeoneaskedhimwhy , hereplied,ThisisanAMradio. Notes: 1.Iknewaguywhoplayedhisradioonlyinthemorning. 我认识一个人,他只在早上收听广播。 2.Whensomeoneaskedhimwhy , hereplied,Thisisan
Recently, some researchers in Australia were excited about messages from a distant galaxy. But it turns out that the signals were from a completely different source. The scientists at Parkes Observatory in Australia specialize in radio bursts- short
A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h
On January 11, Norway became the first country to begin turning off signals from its FM radio network. The Norwegian stations will instead use only digital audio broadcasting, called DAB. FM, or frequency modulation, radio stations have been in opera
Three radio stations in the United States mainly broadcast one thing: the official time. The three are radio stations WWV and WWVB, in the state of Colorado, and WWVH, on the island of Kauai in Hawaii. They send out signals that are used by millions
By Nick Wadhams Nairobi 25 September 2007 Plans for a sugar factory in Kenya's Tana River Delta have ignited a bitter dispute between conservation groups and economic officials. As Nick Wadhams reports from Nairobi, opponents argue development could
By Kari Barber Dakar 21 March 2008 In many African countries, few people have access to computers and the Internet. Experts say this is hindering development and preventing students from being able to compete for jobs. At a conference in Dakar this w
Todd: Hey, so Ruth, how do you get your news? Ruth: Oh, I buy a newspaper. Todd: Oh, really, what paper do you read? Ruth: I always read the Guardian. Todd: The Guardian. Is that conservative or liberal? Ruth: Oh, it's labor. Todd: Labor. So the Labo
The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into
Robot Can Help With Farm Work 可以帮助农民干活的机器人 In the American state of Idaho, a robot moves between lines of fruit trees and grapevines. It is doing farm work. Called IdaBot, this robot is a prototype, or model. An engineering te
Voice 1 Hello. Im Rachel Hobson. Voice 2 And Im Mike Procter. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Welcome to our li
Judy: I've called this meeting so we can brainstorm some fundraising ideas. As you know, we're in danger of closing. Any thoughts? Stan: I thought that Juan was working on getting donors. Judy: He is, but we can't count on that coming through. Domini
Todd: Hey, so Ruth, how do you get your news? Ruth: Oh, I buy a newspaper. Todd: Oh, really, what paper do you read? Ruth: I always read the Guardian. Todd: The Guardian. Is that conservative or liberal? Ruth: Oh, it's labor. Todd: Labor. So the Labo
By Derek Kilner Nairobi 21 November 2007 Kenya's Electoral Commission is hearing complaints from candidates who failed to secure their parties' nominations for parliamentary elections, scheduled for December 27. As Derek Kilner reports from Nairobi,
By Anjana Pasricha New Delhi 02 May 2008 In India, controversy has erupted around foreign cheerleaders brought in to provide entertainment for a newly-launched cricket tournament. As Anjana Pasricha reports from New Delhi, many of the cheerleaders ha
今天我们要学的词是spark。 Spark, 作为动词,意思是导致,引起。纽约市和罗德岛最近先后通过了允许同性恋结婚的法律。 The trend of legalizing gay marriage sparked an intensive debate over the meaning of marr