海洋污染生物监测

SSS 2008-10-08

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? The Nobel Prize in chemistry goes to three men who revolutionized molecular life science, Japans Osamu Shimomura and Americans Martin Chalfie and Roger Tsien. They dev

发表于:2019-01-08 / 阅读(45) / 评论(0)

Scientific American(十)月

英闻天下——383 Experts Stress Implementation of Contingency Plan

A recent report released by the Ministry of Environmental Protection shows China has seen over 560 pollution accidents between 2008 and 2011, averaging one in every two and half days. The Ministry urges local environmental departments to update their

发表于:2019-01-19 / 阅读(39) / 评论(0)

英闻天下

北京遭雾霾持续侵袭未来几天恐持续

Beijing will experience five days of poor air quality partly caused by heating systems being turned on, officials announced on Tuesday. 有关官员在周二表示，由于冬季供暖开始，未来5天北京的空气质量将比较差。 Pollution

发表于:2019-02-03 / 阅读(87) / 评论(0)

英语新闻

Plastic pollution

Plastic Pollution NB: This is not an accurate word-for-word transcript Dan: Hello and welcome 6 Minute English from the BBC. Im Dan Walker Smith and today Im joined by Kate. Kate: Hello Dan. Dan: Now today Kate and I are talking about pollution. Kate

发表于:2019-02-04 / 阅读(52) / 评论(0)

六分钟英语

Smog disrupts Beijing traffic, flights

BEIJING, Feb.17 (Xinhua) -- Fresh smog shrouded Beijing and some other provinces in China early on Sunday, disrupting highway traffic and flights. Readings for PM2.5, hazardous particles measuring 2.5 microns in diameter or less, exceeded 200 microgr

发表于:2019-02-08 / 阅读(50) / 评论(0)

英语新闻

英闻天下——199 Beijing's Air Pollution Returns to 'Hazardous' Levels

Smog levels in Beijing have hit the 'Hazardous' mark again just 2 weeks after recording one of the worst cases of air pollution. The PM 2.5 monitoring systems in the Chinese capital showed readings of around 400, which is considered hazardous. That's

发表于:2019-02-21 / 阅读(51) / 评论(0)

英闻天下

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ability factor

alloy-type transistor

betaine type amphoteric surfac-tants