臭氧浓度

ozone concentration的用法和样例：

例句

Moreover, the corona current and ozone generation decreased after long time elapsed.在微粒负载方面，交流与直流电场充电集尘器，在长时间操作下，其穿透率差异不大，集尘器经过微粒负载后电流变小，臭氧浓度也降低。

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上海牛津初中英语九年级

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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

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听一分钟英文-O

初中英语山东版九年级--Unit 10

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初中英语山东版九年级（全一册）

英语课程计划-the Preservation of the Ozone Layer

There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th

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英语课程学习计划和讲义

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

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Psychologically defined, concentration is the process of centering one's attention over a period of time. In practical application, however, concentration is not as simple to deal successfully with as the definition may imply. For this reason, it is

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双语有声阅读

ENVIRONMENT REPORT - Shrinking Ozone Hole over Antarctica

ENVIRONMENT REPORT - November 1, 2002: Shrinking Ozone Hole over Antarctica By Cynthia Kirk This is the VOA Special English ENVIRONMENT REPORT. Australian researchers say the hole in the ozone layer o

发表于:2019-01-02 / 阅读(67) / 评论(0)

健康与环境

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

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实用英语

Study: Loss of Ozone Slows

By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the

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英文歌曲：Luther Vandross - Love The One You're With

There's a Rose In a fisted Glove and the eagle flies with the dove and if you can't be with the one you love it's alright Go ahead and love the one, love the one, love the one your with love the one, love the one, love the one your with If your guy c

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娱乐提高工作效率

Caught Twittering or on Facebook at work? It'll make you a better employee, according to an Australian study that shows surfing the Internet for fun during office hours increases productivity. 上班时上Twitter或Facebook网被撞见？这会让你成

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实用英语

纯正英语一分钟-ozone layer

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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

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科技之光

HEALTH REPORT – Study Links Ozone Pollution to Increased De

HEALTH REPORT – Study Links Ozone Pollution to Increased Deaths By Cynthia Kirk Broadcast: Wednesday, December 08, 2004 I'm Gwen Outen with the VOA Special English Health Report. American researcher

发表于:2019-01-30 / 阅读(86) / 评论(0)

健康与经济

Mourinho wants concentration against Levante

MADRID, Sept. 17 (Xinhua) -- Real Madrid coach Jose Mourinho said this Saturday that he wanted his players to show a better level of concentration when they visit Levante on Sunday evening. Although Madrid have won their last two games, against Getaf

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英语新闻

21-Concentration

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摘取梦想的启蒙星

北京首要空气污染物PM2.5下岗取代者臭氧危害更大

Warm days come with a downside, as masks can't stop pollutant at ground level in Beijing 温暖的天气也有一个不好的地方，那就是口罩挡不住北京地表层的污染物了。 Excessive ozone gas has become the prime pollution problem

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It is cold, so bitter cold, on this dark, winter day in 1942. But it is no different from any other day in this Nazi concentration camp. I stand shivering in my thin rags, still in disbelief that this nightmare is happening. I am just a young boy. I

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学英语单词

barotropic pressure function