锌汞电池

VOA标准英语2015--Rock-Consuming Organisms Alter Views of Life Processes

Rock-Consuming Organisms Alter Views of Life Processes LOS ANGELES Kenneth Nealson can be described in many ways, including expert in microbiology and biochemistry. But that's not the one he is most proud of. People call me the 'father of Shewanella,

发表于:2018-12-08 / 阅读(95) / 评论(0)

VOA标准英语2015年(一月)

SSS 2008-02-22

This is Scientific American's 60-Second Science. I'm Karen Hopkin, this'll just take a minute. On February 8th, we told you about scientists who had created a device worn over the knees that could harvest the energy you otherwise waste while walking.

发表于:2018-12-24 / 阅读(86) / 评论(0)

Scientific American(二)月

60秒科学:水分解的新途径-病毒

One main goal in the renewable energy field is to find an efficient, inexpensive way to split water into hydrogen and oxygen. The hydrogen could then be used as a fuel source for vehicles or fuel cells. Typically, an electric current breaks the water

发表于:2019-01-02 / 阅读(124) / 评论(0)

60秒科学

SSS 2010-04-14

发表于:2019-01-08 / 阅读(126) / 评论(0)

Scientific American(四)月

VOA慢速英语 2007 1113b

SCIENCE IN THE NEWS - Discovery That Stored Blood Loses a Life-Saving Gas Could Solve Mystery By Lawan Davis, Soo Jee Han and Caty Weaver / Broadcast: Mon, 12 Nov 2007 16:00:00 UTC VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm S

发表于:2019-01-11 / 阅读(168) / 评论(0)

VOA慢速英语2007年（十一）月

TED演讲:怎样选择适合你的防晒霜(1)

Sunscreen comes in many forms, each with its own impacts on your body and the environment. 防晒霜有很多种，每种对你的身体和环境影响各有不同。 With so many options, how do you choose which sunscreen is best for you? 有了这么

发表于:2019-01-17 / 阅读(128) / 评论(0)

TED演讲教育篇

北京最后1座燃煤电厂于日前关停

Beijing's last large coal-fired power plant suspended operations last Saturday, meaning the capital has become China's first city with all its power plants fueled by clean energy. 上周六，北京最后一座大型燃煤电厂停机备用，这意味

发表于:2019-02-04 / 阅读(86) / 评论(0)

英语新闻

Offering Substitute　提供代用品

Offering Substitute 提供代用品 Specimen Letters1. Offering Rayon in Place of Watered Silk提供人造丝代替水洗丝Dear Sirs,Thank you for your fax of yesterday (April 3) with your order No.456 for 5,000 metres of 100cm wide watered silk. We

发表于:2019-02-05 / 阅读(155) / 评论(0)

实用英语

18招促环保（双语）

18招促环保（双语）我们中的每个人都应该对自己日常生活活动和选择所产生的温室气体负责。因此，防止气候变化需要地球上的每个人共同来努力。在中国，平均每户每年的碳排放量是2.41吨

发表于:2019-02-06 / 阅读(184) / 评论(0)

实用英语

Turn Off Your Cell Phone 关掉你的手机

Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte

发表于:2019-02-07 / 阅读(231) / 评论(0)

趣味英语

VOA常速英语2008年-Scientists Make Fabric That Generates Electrici

By Jessica Berman Washington 13 February 2008 Scientists in the United States say they have developed fabrics that can generate electricity. Researchers say they have harvested enough electricity to power small electronic devices such as an mp3 playe

发表于:2019-02-08 / 阅读(91) / 评论(0)

VOA常速英语2008年（二月）

China to boost distribution industry

BEIJING, July 11 (Xinhua) -- The State Council, or China's Cabinet, announced on Wednesday that it will boost the development of the nation's distribution industry with the goal of establishing a modern goods distribution system that is efficient, co

发表于:2019-02-08 / 阅读(138) / 评论(0)

英语新闻

研究人员开发新技术应对雾霾

Researchers from Xian Jiaotong University in Northwest Chinas Shaanxi Province have developed a way to eliminate air pollutants during the coal-burning process, which they hope would significantly address the countrys smog problems. 来自中国西北的

发表于:2019-02-13 / 阅读(181) / 评论(0)

英语新闻

Environment Report Reveals Serious Pollution in China

China's State of the Environment Report for 2012 suggests that the overall quality of China's environment is balanced and stable. The condition of underground water remains to be a big concern. Li Dong has the details. Released annually by China's Mi

发表于:2019-02-14 / 阅读(226) / 评论(0)

世界各地新闻集锦

用电脑的人必看的商务英语-1

电脑英语--常见硬件篇CPU：Central Processing Unit，中央处理单元，又叫中央处理器或微处理器，被喻为电脑的心脏。 RAM：Random Access Memory，随机存储器，即人们常说的内存。 ROM：Read－Only Memory，只

发表于:2019-02-15 / 阅读(135) / 评论(0)

天天商务口语

关于电脑英语缩略词大盘点

重要电脑英语及其缩写 CPU：Central Processing Unit，中央处理单元，又叫中央处理器或微处理器，被喻为电脑的心脏。 RAM：Random Access Memory，随机存储器，即人们常说的内存。 ROM：Read－Only Memory，

发表于:2019-02-16 / 阅读(95) / 评论(0)

实用英语

WHO: Diesel Exhaust Causes Cancer

The World Health Organization, upgrading a previous warning, said June 12 that diesel exhaust causes cancer and called for tighter emissions standards, comparing the risk of exhaust to second-hand cigarette smoke. Tuesdays announcement comes after in

发表于:2019-02-17 / 阅读(111) / 评论(0)

英语新闻

U.S. researchers discover human lung stem cell

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(180) / 评论(0)

英语新闻

常见硬件名和设备名中英对照

CPU：Central Processing Unit，中央处理单元，又叫中央处理器或微处理器，被喻为电脑的心脏。 RAM：Random Access Memory，随机存储器，即人们常说的内存。 ROM：Read－Only Memory，只读存储器。 EDO：Ext

发表于:2019-02-21 / 阅读(85) / 评论(0)

实用英语

万物简史第382期:浩瀚的海洋(1)

18 The Bounding Main 第十八章浩瀚的海洋 Imagine trying to live in a world dominated by dihydrogen oxide, 请你想像一下，你能不能生活在一个由一氧化二氢主宰的世界里。 a compound that has no taste or smell and is so

发表于:2019-02-25 / 阅读(163) / 评论(0)

万物简史

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