高水头轴流式水轮泵

无线电导航有声信标相关词汇-4

average brightness 平均亮度 average picture level 平均图象电平 averaging 求平均数 avionics 航空电子学 axial betatron oscilations 轴向电子感应加速岂荡 axial etch nonuniform

发表于:2018-12-08 / 阅读(244) / 评论(0)

电信英语

剑桥雅思报考指南第17期:OG04 Recording 19

听力文本 Recording 19 录音19 A. At the bottom of the system, there is a storage tank, which can hold up to 500 litres of rainwater. The water stored in the tank can be used for general gardening and cleaning. A、在该系统底部有个贮存水

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走进剑桥大学

2008年ESL之日常生活 05 Using the Restroom

05Using the Restroom GLOSSARY restroom a public bathroom; a large room with one or more toilets and sinks* Do you know where the mens restroom is? mess disordered; unclean; not organized or neat* Your room is a mess! Please clean it up before your gr

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2008年ESL之日常生活

儿童英语读物 The Firehouse Mystery CHAPTER 2 Just Like Real Firefighters

Steve, are you a firefighter, too? Violet asked as they followed him. Yes, he said, wheeling himself through a side door. I used to be on active duty, until I was injured in an accident. Since then I havent been able to walk. So now I work in the off

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56 The Firehouse Mystery

60秒科学:Do Rainforests Create Rain?

Rainforests exist because it rains a lot and that makes the forests grow, right? Well, not so fast. What if its not the rain that makes the forestswhat if its the forests that actually generate the rain? Thats the contention of a paper in BioScience

发表于:2019-01-02 / 阅读(164) / 评论(0)

60秒科学

AGRICULTURE REPORT - Using Water to Produce Electricity

AGRICULTURE REPORT - Using Water to Produce Electricity By Gary Garriott Broadcast: Tuesday, May 04, 2004 This is the VOA Special English Agriculture Report. The power of flowing water can be used to

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农业与发展

SSS 2009-05-07

Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

发表于:2019-01-08 / 阅读(124) / 评论(0)

Scientific American(五)月

NPR 2008-06-14

NBC newsman Tim Russert is being remembered today both by his colleagues and by the politicians whom he interviewed, among them President Bush. Russert died suddenly this afternoon while at work. The cause of death is not known. Informed of the news

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2008年NPR美国国家公共电台六月

VOA标准英语2010年-BP Has Some Success in Plugging Oil Le

BP oil company has announced its first major success in containing a massive oil leak in the Gulf of Mexico. Engineers inserted a metal tube into a broken pipe on the sea floor, to siphon oil into a ship on the surface. BP engineers implemented the f

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VOA标准英语2010年(五)月

VOA标准英语2011--Doctors Achieve Milestone Using Artifici

Doctors Achieve Milestone Using Artificial Heart With No Beat In March, two doctors at the Texas Heart Institute in Houston achieved what medical experts call a major milestone by implanting a continuous-flow artificial heart in a human patient. The

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VOA标准英语2011年(七月)

VOA标准英语2008年-Engineer, Inventor, Capitalist Martin Fisher, S

Engineer and inventor Martin Fisher has applied his passion for improving things to the challenge of eliminating poverty in rural Africa. As Maura Farrelly reports, his non-profit organization is transforming the lives of thousands of poor African f

发表于:2019-01-20 / 阅读(92) / 评论(0)

VOA标准英语2008年（九月）

摇滚:Go With The Flow石器时代的女皇

英文歌词： She said i'll throw myself away, They're just photos after all I can't make you hang around. I can't wash you off my skin. Outside the frame, is what we're leaving out You won't remember anyway I can go with the flow But don't say it does

发表于:2019-01-26 / 阅读(157) / 评论(0)

英文摇滚歌曲

CNN Marketplace 2006-06-13

A new survey shows you're not paying any more the gas pumped than you were three weeks ago. Good news since late May. Motorists aren't paying any more for gas, but not paying any less either, accordin

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商业报道2006年

英语访谈对话 515 Life in Africa

Todd: So Carla, you lived in Africa. Carla: We got married in Africa. Todd: Wow. Carla: And we moved to Nigeria. As I told you before, we got married in Ghana, and we moved to Nigeria. And our kids were born in Nigeria. But I wanna tell you a little

发表于:2019-01-30 / 阅读(167) / 评论(0)

英语访谈对话

单词超市第11期 pump

今天要学的一个词是：pump。pump，Pump一般是指泵，或抽水机。可是今天讲的pump是指汽车加油站的泵。英国石油公司宣布停止在阿拉斯加的石油开采，《洛杉矶时报》的标题说：Oilfield Closure t

发表于:2019-02-02 / 阅读(155) / 评论(0)

英语单词荟萃

VOA常速英语2008年-US Researchers Hope to Tap Ocean Flows for Elec

By Brian Wagner Key West, Florida 06 March 2008 Researchers in the United States are set to begin testing underwater turbine systems that can produce electricity from ocean water flows. The projects in Florida are the latest efforts to find alternati

发表于:2019-02-05 / 阅读(123) / 评论(0)

VOA标准英语2008年（三月）

美国英语口语俚语(4)

美国英语口语俚语(4) 1.ripoff 骗人的东西 What a ripoff! The new car I bought doesn't work! 真是个骗人货！我买的新车启动不了！ 2.rock the boat 找麻烦 Don't rock the boat! Things are fine just the way they are. 别找麻烦

发表于:2019-02-06 / 阅读(103) / 评论(0)

实用英语

学个词 12:pump

发表于:2019-02-16 / 阅读(151) / 评论(0)

学个词

原版英语对话1000个:516 Life in Africa

发表于:2019-02-18 / 阅读(95) / 评论(0)

原版英语对话1000个

听播客学英语 107 如何保持温暖

If you visit upland areas of Britain places like the mountains of Scotland, or Wales, or the Pennine Hills in northern England you will see a lot of sheep. Many of the sheep are in places where there are no walls or hedges to keep them in their field

发表于:2019-02-19 / 阅读(131) / 评论(0)

听播客学英语

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asymmetric dual quantum wells