Earth and Sky:Global Warming and Ozone 全球变暖和臭氧

Global Warming and Ozone 全球变暖和臭氧 Could the coming century bring a new threat to the ozone layer? Discover one scientist's model of the effect of global warming and greenhouse gases on ozone -- on today's Earth and Sky. DB: This is Earth and S

发表于:2019-01-02 / 阅读(114) / 评论(0)

(科普英语)Earth and Sky

Scientists: Ozone-Eating Chemical Mysteriously Rising

Scientists have found that levels of a now-banned chemical are rising again in Earths atmosphere. The chemical is called CFC-11. It is the second most common kind of CFC, short for chlorofluorocarbon. Chlorofluorocarbons were once widely used in many

发表于:2019-01-03 / 阅读(54) / 评论(0)

2018年VOA慢速英语(五)月

大风肆虐波兰

大风肆虐波兰 WARSAW, March 17 (Xinhua) -- Gales, mostly in central and northern Poland, have blown over thousands of trees, damaging cars and cutting off power supply for thousands of homes. The gales hit Poland over the weekend and Monday and

发表于:2019-01-07 / 阅读(36) / 评论(0)

英语新闻

纯正英语一分钟-ozone layer

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2019-01-21 / 阅读(66) / 评论(0)

纯正英语一分钟

(1)Springtime Ozone Loss

25 大气层中臭氧正日渐稀薄 DATE=3-21-01 TITLE=SCIENCE REPORT - (1)Springtime Ozone Loss BYLINE=George Grow (Start at 1'00

发表于:2019-01-30 / 阅读(254) / 评论(0)

科技之光

The Horse and the Stag

A very long time ago horses lived freely all over the world．One of these horses used to feed every day in a grassy meadow．No other animal used the meadow and the horse felt that it belonged completely to him．Then one day a stag came bounding ov

发表于:2019-02-06 / 阅读(66) / 评论(0)

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Akom

alkylidene group

Aouni

arrester disconnector

Boucherot starting method

bugryn (buhryn)