[网络] 体型氧化锌电压敏电阻器；体型氧化锌变阻器

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(134) / 评论(0)

Scientific American(二)月

商务英语词汇业务：洽谈业务

[00:03.81]bulk order :大量订购 [00:05.71]commission :n.佣金 [00:07.49]competitive edge :竞争优势 [00:09.74]deal :n.交易 [00:11.41]hot seller :畅销品；热卖商品 [00:13.37]in stock :库存 [00:15.25]lead time :交货期(从订货到取

发表于:2018-12-31 / 阅读(317) / 评论(0)

商务英语分类核心1000词汇

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

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60秒科学

SSS 2010-04-14

发表于:2019-01-08 / 阅读(187) / 评论(0)

Scientific American(四)月

投资者寻求避险:黄金、石油价格上涨

Gold, Oil Prices Up as Investors Seek Safe Haven 投资者寻求避险:黄金、石油价格上涨 NEW YORK The up-and-down prices of oil and gold mirror the unsettled world situation, and both reflect the economic squeeze most nations currently face

发表于:2019-01-14 / 阅读(147) / 评论(0)

VOA标准英语2016年(三月)

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(176) / 评论(0)

TED演讲教育篇

神探夏洛克第一季第二集_7

神探夏洛克第一季第二集_7 你知道这谁画的么我认得这颜料 Know the author? I recognise the paint. 像密歇根产的喷力强劲 It's like Michigan...hard-core propellant. 我猜含锌 I'd say zinc. 那个符号呢你认识么

发表于:2019-01-28 / 阅读(293) / 评论(0)

神探夏洛克第一季

SCIENCE IN THE NEWS - From A to Zinc: The Story of Vitamins

SCIENCE IN THE NEWS - From A to Zinc: The Story of Vitamins By Nancy Steinbach Broadcast: Tuesday, March 29, 2005 (MUSIC) VOICE ONE: I'm Bob Doughty with Phoebe Zimmermann, and this is the VOA Special

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科技之光

学个词Learn a Word 第1503课 bulk up

今天我们要学的词是bulk up。Bulk up, 是增加，积累的意思。美国四月份就业报告出台，就业集中增加在一些低薪资行业。 Hiring by retailers rebounded, and food services and temporary-help agencies also bulked up,

发表于:2019-02-04 / 阅读(202) / 评论(0)

英语单词荟萃

Zinc Leads to Shorter, Milder Colds

Zinc supplements reduce the average cold by about a day and also make symptoms（症状） less severe, according to the latest findings. There's no cure for the common cold, but there's no shortage of ways to treat the symptoms. For a number of year

发表于:2019-02-05 / 阅读(148) / 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(206) / 评论(0)

实用英语

Varas the hero as Barca held at home

MADRID, Oct. 22 (Xinhua) -- Sevilla goalkeeper Javi Varas was the hero of the night as his side produced a stunning defensive display to earn a 0-0 draw against FC Barcelona in the Camp Nou stadium. Varas made a string of spectacular saves, including

发表于:2019-02-07 / 阅读(181) / 评论(0)

英语新闻

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(137) / 评论(0)

VOA常速英语2008年（二月）

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(230) / 评论(0)

英语新闻

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(180) / 评论(0)

天天商务口语

保持头发健康的最佳食物

It takes more than shampoo and conditioner to maintain the charm of shiny and manageable hair. See what you should eat to keep those tresses healthy, alluring and strong. 为了维持有光泽且易打理的头发，仅仅用洗发水和护发素是不

发表于:2019-02-17 / 阅读(216) / 评论(0)

阅读空间

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(169) / 评论(0)

英语新闻

价格逆天！如何用英语讨价还价？

逆天的价格，你碰上过吗？无节操的商家，你遭遇过吗？东西贵得太离谱，你该怎么说？今天就来看看那些贵到不能忍的表达吧！ Rip-off 英文里rip sb off是个动词短语，意思是：一件东西本来不

发表于:2019-02-18 / 阅读(200) / 评论(0)

英语口语

历年考研英语的高频单词-Z

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考研英语

换季“血拼”必备口语10条

换季血拼的时候又到了，各位久经商场的购物狂人，一定预备好了杀价策略，准备大显身手！今天就来看看砍价都会用到哪些口语吧！ 1. Hey, don't try to rip me off. I know what this is worth. 别想宰我，

发表于:2019-02-25 / 阅读(163) / 评论(0)

英语口语

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additional power source

Aluminous-ludwigite

anaclitic depressions