碳化铯 {乙炔铯}

美国英语听力80篇3 Lesson58

[00:06.37]The United States has a new official clock. [00:10.95]The clock began operating late last year in the American city of Boulder,Colorado. [00:18.39]Experts say the new clock is so exact that it will neither gain nor lose so much as one secon

发表于:2018-12-26 / 阅读(36) / 评论(0)

美国英语听力80篇

20 Years after Tragedy in India, New Report Accuses US Compa

In the early morning hours of December 3, 1984, deadly gas leaked from a Union Carbide pesticide factory in Bhopal, India. The accident would result in the worst industrial disaster of the 20th centur

发表于:2019-01-03 / 阅读(139) / 评论(0)

VOA2004（下）--世界经济

SSS 2009-08-12

Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol

发表于:2019-01-08 / 阅读(49) / 评论(0)

Scientific American(八)月

分类词汇：钢铁产业

plate and strip 板带 steel billet 钢坯 crude steel 钢 steel 材 iron alloy 铁合金 long product 长材 pipe product 管材 crude steel 粗钢 mining of ferrous metal ores 黑色金属采选业 international standard price 基准价 Tubarao 巴西

发表于:2019-01-17 / 阅读(53) / 评论(0)

英文语法词汇

英语新闻与报道—News & Reports 68

Wk 49 (3 December 1984) Gas Leak Kills Thousands In IndiaThis Week in HistoryA gas leak at a Union Carbide factory in Bhopal, India, causes thousands of deaths. In 1984, one of the most deadly industrial accidents in history occurred in Bhopal, India

发表于:2019-01-22 / 阅读(46) / 评论(0)

英语新闻与报道—News and Reports

环球英语 — 212：The Bhopal Gas Leak

Voice 1 Thank you for joining us today for Spotlight. Im Rebekah Schipper Voice 2 And Im Joshua Leo. Spotlight uses a special English method of broadcasting. It is easier for people to understand no matter where in the world they live. Voice 3 The ni

发表于:2019-02-21 / 阅读(59) / 评论(0)

环球英语 Spotlight

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学英语单词

单词：cesium carbide

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