旋转圆盘电极

机械类词汇大全-24

967 、卷尺 flexiblerule;taperule 968 、接口；界面；分界面 interface 969 、接合 joining 970 、接合工具 joiningtool 971 、接地 earthing 972 、接缝 lappedseam;seam 973 、

发表于:2018-11-29 / 阅读(523) / 评论(0)

英文名句短语

用Mp3背六级单词044

morality influence undertake bonus excess vault pudding howl move thigh enterprise icy melody tribute intelligible hurl cavity portray cordial conscientious quantify electrode nose cite

发表于:2018-12-01 / 阅读(525) / 评论(0)

用Mp3背六级单词

SSS 2011-12-30

This is Scientific American's sixty seconds science, I'm Christopher Intagliata. Got a minute? Instead of installing solar paint on your roof how about just giving a house new paint job of cause you'd have to sure to use solar paint. That's what to a

发表于:2018-12-02 / 阅读(545) / 评论(0)

Scientific American(十二)月

发现可以给手机充电的细菌

Bacteria Discovered To Recharge Cell Phone A microbe called Rhodoferax Ferrireducens，found in the mud at Oyster Bay，Virginia，has been discovered to transfer electrons directly onto an electrode

发表于:2018-12-18 / 阅读(472) / 评论(0)

有声杂志阅读

CNN 2012-04-07

hi,I am Carl Auzus.You are watching CNN studentnews.We have a couple of awsome things in this particular Friday.The Men's field high tiger in Texas got our social media question,right?So congratulates to them.And we have a suprise for you in today's

发表于:2018-12-24 / 阅读(428) / 评论(0)

CNN2012年(四)月

英文杂志-Magazine：Wormholes

Wormholesby Linda BaxterHave you ever read Carl Sagan's 1985 science fiction novel 'Contact'? Or have you seen the film of the same name starring Jodie Foster? If you have, then you will remember the scene near the end of the film, when the heroine t

发表于:2019-01-02 / 阅读(551) / 评论(0)

英文杂志-Magazine

2010年麻省理工学院清洁能源奖揭晓(有声)

Time for M.I.T.s Clean Energy Prize. The annual competition gives teams of university students a chance to compete for $200,000 to kick-start their new clean energy business. One finalist designed a compression technology for natural gas wells that w

发表于:2019-01-02 / 阅读(627) / 评论(0)

60秒科学

50年了,我们离《2001:太空漫游》还有多远?

Remembering 2001: A Space Odyssey 50 Years Later It was 50 years ago that the science fiction film 2001: A Space Odyssey opened in theaters across the United States. The film, directed by Stanley Kubrick, was based on a book by Arthur C. Clarke. The

发表于:2019-01-03 / 阅读(445) / 评论(0)

2018年VOA慢速英语(七)月

SSS 2008-08-01

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

发表于:2019-01-04 / 阅读(480) / 评论(0)

Scientific American(八)月

中学英语课程标准词汇表（简易袖珍背诵版）D2

dial ［5daiEl］vt. 拨（电话号码） redial重拨 dialogue［5daiElC^］ (美 dialog) n. 对话 diamond ［5daiEmEnd］n. 钻石，金刚石；纸牌中的方块 diary［5daiEri］ n. 日记；日记

发表于:2019-01-09 / 阅读(562) / 评论(0)

英文语法词汇

北师大小学英语六年级上--unit5（2）

[00:02.71] [00:06.33]Listen to This [00:09.68]Write the number [00:12.85]1.This computer isn't working. [00:17.24]You should turn it on first! [00:20.87]2.I want to use the Internet. [00:25.15]You should ask your parents to help you. [00:29.55]3.Is t

发表于:2019-01-09 / 阅读(690) / 评论(0)

北师大版小学英语六年级上

世界名人简介第5期:安格拉·默克尔

Angela Merkel was born in Hamburg in 1954. She became Germanys first female Chancellor and the first from communist East Germany in 2005. Forbes magazine listed her as the most powerful woman in the world in 2006 and 2007. Western media often dub her

发表于:2019-01-11 / 阅读(468) / 评论(0)

世界名人简介

美联社新闻一分钟 AP 2014-10-07

This is AP News Minute. A day after addressing a harsh UN General Assembly, Indias new Prime Minister Narendra Modi received sundries of receptions in New York City Sunday. He greeted crowds from a rotating stage of American square garden. In Hong Ko

发表于:2019-01-11 / 阅读(420) / 评论(0)

美联社新闻一分钟2014(十)月

VOA慢速英语 2007 0605a

This is the VOA Special English Agriculture Report. Sorghum farmers in eastern Uganda, working with scientists, have tested some lower-cost ways to improve their soil. Little rain and poor soil fertility are problems in that area, as in other parts

发表于:2019-01-11 / 阅读(480) / 评论(0)

VOA慢速英语2007年（六）月

闭着眼睛飘单词四级词汇22

[0:0]discourage disgust disk dismiss [0:46.4036]disorder display disposal dispose

发表于:2019-01-16 / 阅读(509) / 评论(0)

闭着眼睛飘单词四级词汇

英语听力：自然百科地球自转的奥秘

Well, the story of the earth spin goes back all the way to the origin of the solar system, four and a half billion years ago. The solar system started out as a cloud of gas and dust. And these gas and dust clumped together to form the sun and the var

发表于:2019-01-22 / 阅读(379) / 评论(0)

自然百科2009年

英语听力文摘 English Digest 482、太阳也在自转？

As the Sun Turns 太阳也在自转？ Everyone knows that the earth turns. As a matter of fact, the sun turns too. Altough a lot of people don't realize it. Im not talking about being in orbit , nowthe earth definitely orbit s the sun and not the ot

发表于:2019-01-26 / 阅读(400) / 评论(0)

英语听力文摘 English Digest

英文原版对话1000个:778 Climbing

Todd: So, Shona, you are quite fit. You like to run. Do you like to do anything else? Shona: Yeah, actually. I like quite a lot of different sports. I like to play tennis. That is like something that I like to participate in with someone else, but al

发表于:2019-02-06 / 阅读(463) / 评论(0)

原版英语对话1000个

【英语语言学习】万维网

ROBERT SIEGEL, HOST: These days, there's very little you can't find on the World Wide Web, but we have a story now about one important piece of the Web's own history that has gone missing, and no search engine will find it. NPR's Geoff Brumfiel repor

发表于:2019-02-16 / 阅读(462) / 评论(0)

英语语言学习

使用电脑必懂的53个英文单词和缩写

PC：个人计算机Personal Computer CPU：中央处理器Central Processing Unit CPU Fan：中央处理器的散热器(Fan) MB：主机板MotherBoard RAM：内存Random Access Memory，以PC-代号划分规格，如PC-133，PC-1066，PC-2700 HDD：硬

发表于:2019-02-18 / 阅读(498) / 评论(0)

实用英语

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braddock-rowe triangle