[计]均方根[有效值]-直流转换器混合微电路

NPR 2012-06-19

President Obama says the latest parliamentary vote in Greece offers a positive prospect for restoring financial confidence in euro. NPRs Scott Horsley reports Europe is the main focus of an economic summit meeting that Mr. Obamas attending in Mexico.

发表于:2018-12-17 / 阅读(83) / 评论(0)

2012年NPR美国国家公共电台6月

VOA慢速英语20060802a

HEALTH REPORT - Study in Ferrets Shows H5N1 Virus Does Not Spread EasilyBy Caty Weaver Broadcast: Wednesday, August 02, 2006 This is the VOA Special English Health Report. In recent days there have be

发表于:2019-01-02 / 阅读(66) / 评论(0)

2006年慢速英语（八）月

DC's National Arboretum a Quieter Place to Enjoy Cherry Blossoms

Each year at the start of spring, more than 1 million people travel to Washington, D.C., for one major reason: the cherry blossoms. Most of the travelers visit an area known as the Tidal Basin. During peak bloom, the Tidal Basin is bursting with colo

发表于:2019-01-03 / 阅读(96) / 评论(0)

2018年VOA慢速英语(四)月

TED演讲:一项关于电动车的大胆计划(5)

Now this would have been a wonderful paper. 这本来是一篇极好的文章。 That's how I solved it in my head. 这便是我解决这个问题的过程。 It was a white paper I handed out to governments. 我把这分白皮书分发给不同的政府

发表于:2019-01-03 / 阅读(84) / 评论(0)

TED演讲科技篇

SSS 2009-05-13

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. Hybrid cars are good for the environment, but scientists say that they might be bad for pedestrians. Because hybrids are so quiet that can be hard for wa

发表于:2019-01-08 / 阅读(110) / 评论(0)

Scientific American(五)月

SSS 2009-03-12

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Farmers fertilize their fields to get the maximum meal from their crops. But the effects of these loads of nitrogen and phosphorous extend beyond the field and past

发表于:2019-01-08 / 阅读(119) / 评论(0)

Scientific American(三)月

Saint George

Kate: Hello, this is 6 Minute English. I'm Kate Colin and today I'm joined by Jackie Dalton. Hello again Jackie. Jackie: Hi Kate. Kate: Today is the 23rd of April and is St George's Day. Saint George is the patron saint of England and all over the c

发表于:2019-01-08 / 阅读(383) / 评论(0)

六分钟英语

VOA标准英语2009年-Hybrids Hit Hard as Auto Sales Slide

Automobile sales have slumped around the world, with the latest data from December offering a grim outlook for some of the world's top car companies. Already, auto giant Toyota has announced plans to close its Japanese factories for 11 days in Febru

发表于:2019-01-09 / 阅读(94) / 评论(0)

VOA标准英语2009年(一月)

分类词汇：杂交水稻

自花授粉 self-pollination 三系杂交稻 three-line method /CMS system 两系杂交稻 two-line method / PGMS and TGMS system 一系杂交稻 one-line method / apomixis system 杂种优势 heterosis 品种间杂交 intervarietal hybrids 亚种间杂

发表于:2019-01-17 / 阅读(94) / 评论(0)

英文语法词汇

托福听力词汇量不够怎么办

听力薄弱的考生是很难在托福考试中得到高分的。首先考生对自己的词汇量应该有个基本的了解。考生可以翻看一下TPO练习的问题部分，如果连审题都有困难，那么建议先别急着考试，好好从

发表于:2019-01-17 / 阅读(114) / 评论(0)

托福英语

托福听力之3个听力词汇量的5大关键点

在托福考试中，听力是一个很重要的环节，而在听力备考的过程中，词汇又是非常重要的。在托福听力的备考过程中，我们细细翻一下TPO资料，如果发现连审题都有着困难，那么，这时候就建

发表于:2019-01-17 / 阅读(124) / 评论(0)

托福英语

英语笑话听力+文本：CD唱机

【生词预览】 decipher解读，technicals技术术语【笑话原文】 CD Player While shopping for my first CD player, I was able to decipher most of the technicalses on the promotional signs. One designation had me puzzled, though, so I call

发表于:2019-01-22 / 阅读(127) / 评论(0)

英语笑话（MP3+文本）

PBS高端访谈:司机应该按每英里收费吗?

RICK KARR: Portland, Ore., is at the vanguard of the war to reduce gasoline consumption. You can find evidence all over its downtown area ... and at its car dealerships. EARL BLUMENAUER: We're looking at hybrids, plug-in hybrids, electric cars. There

发表于:2019-01-27 / 阅读(118) / 评论(0)

PBS访谈社会系列

纽约车展上电动汽车来势汹汹

NEW YORK Plug in your car, then unplug, and drive away. More and more consumers are doing just that. At the 2014 New York Auto Show many automakers unveiled electric or hybrid vehicle to address the growing global appetite for environment-friendly ca

发表于:2019-01-30 / 阅读(105) / 评论(0)

英语新闻

AGRICULTURE REPORT - Hybrids

AGRICULTURE REPORT - Hybrids By Broadcast: Tuesday, June 08, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Since ancient times, farmers have chosen the seeds for the coming

发表于:2019-01-30 / 阅读(115) / 评论(0)

农业与发展

大众拟用催化转化器修复受影响汽车

Volkswagen has devised a new catalytic converter that could fix the majority of the cars in the US affected by the diesel emissions scandal, as details emerge of its attempts to satisfy regulators. 大众汽车(Volkswagen)设计出一种新的催化转

发表于:2019-02-08 / 阅读(131) / 评论(0)

英语新闻

St George's Day

BBC Learning English6 Minute EnglishSt George's Day6 Minute English ? Kate: Hello, this is 6 Minute English. I'm Kate Colin and today I'm joined by JackieDalton. Hello again Jackie. Jackie: Hi Kate. Kate: Today is the 23rd of April and is St George'

发表于:2019-02-08 / 阅读(503) / 评论(0)

六分钟英语

经济学人198:汽车制造商燃油车赢得先机

Business 商业报道 Carmakers 汽车制造商 Revenge of the petrolheads 燃油车赢得先机 Fossil-fuel cars are getting much cleaner, making life hard for green ones 燃油汽车越来越环保了，环保汽车日子难过了 THE Chevrolet Vol

发表于:2019-02-16 / 阅读(79) / 评论(0)

经济学人商业系列

China's auto sales up nearly 3%

BEIJING, July 11 (Xinhua) -- China's automobile sales hit 9.6 million units in the first half of 2012, up 2.93 percent year on year, data released on Wednesday by the China Association of Automobile Manufacturers (CAAM) showed. Auto output during the

发表于:2019-02-18 / 阅读(150) / 评论(0)

英语新闻

经济学人253:微软和个人电脑业

Microsoft and the PC industry 微软和个人电脑业 Defenestrated 被抛弃 Steve Ballmer is a casualty of the personal computers rapid decline 史蒂夫鲍尔默是个人电脑迅速衰败的罪魁祸首 Aug 31st 2013 |From the print edition UNTI

发表于:2019-02-20 / 阅读(81) / 评论(0)

经济学人商业系列

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