耐酸材料;抗酸材料

Earth and Sky:Acid Rain 酸雨

Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J

发表于:2018-12-07 / 阅读(278) / 评论(0)

(科普英语)Earth and Sky

SSS 2011-07-21

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. After water, tea is the world's most popular drink. Now three New York City high school students have discovered what maybe a bruing scandal because th

发表于:2018-12-24 / 阅读(193) / 评论(0)

Scientific American(七)月

SSS 2009-07-22

This is Scientific American 60-Second Science. I'm Cindey Graber. This will just take a minute. When TV sets die, they usually end up incinerated or in landfills. But now researchers from Englands University of York believe theyve found a valuable us

发表于:2018-12-24 / 阅读(152) / 评论(0)

Scientific American(七)月

Bacteria Loves Your Mouth 细菌钟爱你的嘴

Did you know that there could be more bacteria living in your mouth than there are people on earth? 你知道吗，寄居于你口中的细菌有可能比全世界的人口数还多？ Bacteria love our mouths because the livin is easytheres plenty o

发表于:2018-12-28 / 阅读(178) / 评论(0)

初学者听力文摘精选

商务英语词汇行销：商展

[00:03.81]bottom line :结余；结算 [00:05.82]bundle :n.搭售商品 [00:07.49]convention :n.(专业)展览会 [00:09.37]demonstration :n.展示 [00:11.46]entrance :n.入口 [00:13.29]go with :选择；决定采用 [00:15.17]high traffic :a.高流量

发表于:2018-12-31 / 阅读(241) / 评论(0)

商务英语分类核心1000词汇

知性英语－Acid rain 酸雨

How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

发表于:2019-01-02 / 阅读(324) / 评论(0)

知性英语

VOA慢速英语 2008 0520a

Agriculture Report - Cork: More Than Just a Bottle Stopper New uses are found for this environmentally friendly crop, even as some winemakers change to plastic or metal caps. Transcript of radio broadcast: 19 May 2008 This is the VOA Special English

发表于:2019-01-11 / 阅读(120) / 评论(0)

VOA慢速英语2008年（五）月

VOA标准英语2014--Graphene Called Amazing, Versatile Material of the Future 前景光明的多功能材料石墨烯

Graphene Called Amazing, Versatile Material of the Future 前景光明的多功能材料石墨烯 In 2004, two scientists at the University of Manchester in England isolated a carbon-based material called graphene, with some unusual properties. Andre

发表于:2019-01-14 / 阅读(163) / 评论(0)

VOA标准英语2014年(二月)

VOA标准英语2014--Scientists Create Blackest Material Ever

Scientists Create Blackest Material Ever Of all the black things in the universe only the infamous black holes are so black that not even a tiny amount of light can bounce back. But scientists have managed to create material almost as black, and it h

发表于:2019-01-14 / 阅读(161) / 评论(0)

VOA标准英语2014年(七月)

旅游英语口语就该这么说:第198期衣服布料

Does the material stand washing? 这种布料耐洗吗？ Sure. This material is not only washable but also unshrinkable,sun-resistant,crease-resistant, and resilient. 当然，这种布料不仅耐洗，而且不缩水、不怕晒、不起皱还有弹

发表于:2019-01-23 / 阅读(126) / 评论(0)

旅游英语口语就该这么说

VOA慢速英语20060912a

AGRICULTURE REPORT - Cork: More Than Just a Bottle StopperBy Dana Demange Broadcast: Tuesday, September 12, 2006 This is the VOA Special English Agriculture Report. Cork is a light brown material harv

发表于:2019-01-30 / 阅读(138) / 评论(0)

2006年慢速英语（九）月

Developing Wheat Resistant to Leaf Rust

59 美国科学家正试图培育抗叶锈病小麦 DATE=6-19-01 TITLE=AGRICULTURE REPORT - Developing Wheat Resistant to Leaf Rust BYLINE=George Grow (Start at 59

发表于:2019-01-30 / 阅读(184) / 评论(0)

科技之光

上海科学家研发防水耐火纸有助纸质文物保存

In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月，俄罗斯最大的大学图书馆之一发生了火灾

发表于:2019-02-02 / 阅读(133) / 评论(0)

英语新闻

对女性的各种时髦称呼！

白骨精 female office elite 拜金女 money-worship girl; material girl 败犬女 loser dog 大姐大 alpha woman 干物女 dry fish; dull and listless woman 乖乖女 well-behaved girl; obedient girl 虎妈 tiger mother 姐（姐只是个传说中的

发表于:2019-02-07 / 阅读(113) / 评论(0)

英语口语

有关于外贸跟单英语口语60句

有关于外贸跟单英语口语60句 1．whats the size?多大尺寸？ 90x90 (ninety by ninety)九十乘九十。 2．whats the cmb? 体积多大？ 0.07m3 (zero point zero seven cube meter) 0.07立方米。 3．whats the best/last price? 最低价是

发表于:2019-02-15 / 阅读(161) / 评论(0)

天天商务口语

让学生表达自己的手机应用

The APP, 'zenkr', allows students to participate in class, not through a show of hands, but by communicating through their smartphones. Users scan a QR code projected on screens with their smartphones or other devices and then answer questions. The r

发表于:2019-02-17 / 阅读(165) / 评论(0)

英语新闻

跟单常用短语2

19.At least 1 CTN. 至少一箱/件。 20.Theres minimum quantity.有最小起订量。 21.Can they be mixed？可以混装吗？ 22.Mixed packing.混装。 23.Just a moment. Let me check.稍等，让我查一下。 24.Same price/size. 一样的价格

发表于:2019-02-19 / 阅读(161) / 评论(0)

实用英语

【跟着美剧练发音】美少女的谎言39

文本： H: Come in. A: Doing your homework? H: Yeah. What's up? A: I was just reading some material on this truth up day. Figure if I'm going to supervise, I... H: You really don't have to go. I mean, it sounds pathetic. A: No, I want to go. I need

发表于:2019-02-23 / 阅读(113) / 评论(0)

跟着美剧练发音

与空气污染有关的托福词汇

雾霾 haze; 烟雾 smog; 空气污染指数 air pollution index; 橙色预警 orange alert; 悬浮颗粒物 airborne particulate matter; 可吸入颗粒物 inhalable particle; 有毒物质 toxic substance; 空气质量检测 air quality monitoring; 实

发表于:2019-02-26 / 阅读(155) / 评论(0)

雅思英语

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adobe.com

advisory commission

air-intake efficiency

airborne test instrumentation system

antiribonucleoprotein