便携式空气污染分析仪

SCIENCE IN THE NEWS - Findings About Air Pollution and Heart

SCIENCE IN THE NEWS - Findings About Air Pollution and Heart Disease / Fossils from the 'Missing Years' in Africa / U.S. Bans... By Caty Weaver Broadcast: Tuesday, January 13, 2004 (THEME) VOICE ONE:

发表于:2018-12-07 / 阅读(40) / 评论(0)

科技之光

Lesson 103 Air Pollution

Why do people get headaches in a crowded, stuffy room? Because they are breathing bad air. People who breathe bad air for a long time can get really sick. They may even get lung cancer and die. People

发表于:2018-12-08 / 阅读(334) / 评论(0)

赖世雄初级美国英语

SCIENCE IN THE NEWS - Air Pollution Harms Young Lungs / A Le

SCIENCE IN THE NEWS - Air Pollution Harms Young Lungs / A Legal Settlement Over Teflon By Broadcast: Tuesday, October 05, 2004 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I

发表于:2019-01-02 / 阅读(60) / 评论(0)

科技之光

Beijing unveils new steps to curb air pollution

BEIJING, Jan. 22 (Xinhua) -- Beijing will strengthen its efforts to treat PM2.5 and slash the density of major air pollutants by 2 percent this year, the municipality's acting mayor said Tuesday. The capital will take 180,000 old vehicles off the roa

发表于:2019-02-04 / 阅读(60) / 评论(0)

英语新闻

Beijing plans fewer vehicles on roads during heavy air pollution

BEIJING, Jan. 19 (Xinhua) -- The number of vehicles on Beijing's roads could be cut on days when the city suffers from heavy air pollution, according to a new regulation released for comments on Saturday. According to the Beijing Municipal Air Pollut

发表于:2019-02-04 / 阅读(48) / 评论(0)

英语新闻

Two million die of air pollution each year

GENEVA, Sept. 26 (Xinhua) -- Two million people worldwide are estimated to die from air pollution each year, the Geneva based World Health Organization (WHO) said in its air quality report published on Monday. According to data collected by the WHO f

发表于:2019-02-08 / 阅读(43) / 评论(0)

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