单词：radio-frequency ion source
单词：radio-frequency ion source 相关文章
Variety is the Source of Creativity Variety is the source of creativity. Variety injects the fluid of creativity into the most hollow minds. To ensure a triumphant career, variety combined with flexibility to fit in diverse circumstances is the major
24篇魔术美文串记4级词汇
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
VOA标准英语2018年(九月)
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
英语小短文
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
新东方背诵文选
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
环球英语 Spotlight
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
英语笑话（MP3+文本）
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
轻松英文阅读
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
考研背诵50篇
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
2017年VOA慢速英语(一)月
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
2018年VOA慢速英语(九)月
今天我们要学的词是source。 Source, 意思是来源。 Social Security is a reliable income source for seniors, 社会保障是美国老年人可靠的收入来源。 Police have received thousands of tips, according to a source close to the
英语每日一词
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
VOA标准英语2008年（三月）
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
原版英语对话1000个
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
英语小短文
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
2016年VOA慢速英语(十一)月
Samasource Provides Jobs for Poor Via the Internet The World Bank says 1.3 billion of the world's seven billion people live in extreme poverty, surviving on less than $1.25 a day. Aid organizations have long relied on charitable contributions to help
VOA标准英语2011年(十二月)
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
环球英语 Spotlight
Alan, Canada speaker How do I get my news? Well, when I lived in Canada I got my news from primarily watching television and reading the newspaper. But since I moved over to Asia and started using computers more and more I find that I get my main sou
一起闲话英语-English Chitchat
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
地道美语播客
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
英语访谈对话