[化] 三氯化六氨铬

VOA标准英语2014--新的太阳能电池减少生产中对环境的危害

New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc

发表于:2018-12-08 / 阅读(151) / 评论(0)

VOA标准英语2014年(六月)

VOA标准英语2010年-Jonah Hex: Comic Book Gunslinger Comes

Jonah Hex. Are these the boys you wanted? You surely have done us quite a favor. A transaction is all it was. I'll collect my hundred dollar bounty on them and be on my way. From Superman and Spider Man to Josie and the Pussycats, Hollywood has a lon

发表于:2019-01-13 / 阅读(151) / 评论(0)

VOA标准英语2010年(六)月

美国国家公共电台 NPR Retailers Plan To Clear Deadly Paint Removers From Shelves, As EPA Delays Ban

DAVID GREENE, HOST: Families across the United States are fighting with the federal government over a deadly chemical. Dozens of people have died from inhaling methylene chloride. This is an ingredient in common paint removers. NPR's Rebecca Hersher

发表于:2019-01-17 / 阅读(145) / 评论(0)

2018年NPR美国国家公共电台11月

美国国家公共电台 NPR Say Au Revoir To That Hunk Of Metal In France That Has Defined The Kilogram

DAVID GREENE, HOST: So every time you weigh something, whether it's coffee or bananas - I'm not sure what you're weighing - you might be doing it in pounds - well, whatever you're doing, you're unknowingly relying on a global system of measurement th

发表于:2019-01-17 / 阅读(185) / 评论(0)

2018年NPR美国国家公共电台11月

科学美国人60秒 SSS 2016-1-1

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

发表于:2019-01-20 / 阅读(200) / 评论(0)

2016年Scientific American(一)月

英语听力：自然百科为什么海水是咸的？

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(142) / 评论(0)

自然百科2009年

ESL Podcast 390 – Dietary Restrictions and Preferences

Tony: Who did you invite over for dinner Saturday? Carmela: I invited Keith, Sung, Stephanie, and Luis. Tony: You didnt! Carmela: I did. Why? Tony: Youre going to have a hard time cooking for them. Keith is a vegan and only eats food thats organic. S

发表于:2019-02-04 / 阅读(137) / 评论(0)

地道美语播客

英语听书《海底两万里》第170期第12章一切都用电(3)

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先，我对您说，海底有锌、铁、银、金等矿藏，开发并不是不可能的事。

发表于:2019-02-25 / 阅读(237) / 评论(0)

《海底两万里》中英双语有声读物

经济学人388:宝莱坞巨星山米·卡帕尔

Shammi Kapoor 山米卡帕尔 Shamsher Raj Kapoor, Bollywood superstar, died on August 14th, aged 79 山米什尔罗杰卡帕尔，宝莱坞巨星，于8月14日逝世，享年79岁 THE stately descent of an eyelid; the five-minute burning glance; te

发表于:2019-02-25 / 阅读(165) / 评论(0)

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