气载尘埃或微粒监测仪

Emerging Technologies

Emerging Technologies 2005 MIT Technology Review , Technology Review, Inc. Distributed by Tribune Media Services International Of the numerous technologies now in development, MIT Technology Review ha

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彭蒙惠英语

清洁空气4观叶植物

These hardworking houseplants can sweeten every breath you take . Put Your Plants to Work In the early 1980s, when NASA researchers were looking for ways to purify the air inside the space pods of the future , they didn ' t just look to engineer a pr

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英语小短文

VOA标准英语2011--Fermilab Scientists Optimistic About Finding Higgs Boson Particle

Fermilab Scientists Optimistic About Finding Higgs Boson Particle Scientists at the CERN laboratory in Geneva, Switzerland say they are encouraged by new data suggesting their Large Hadron Collider, the world's most powerful atom-smasher, is one step

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VOA标准英语2011年(十二月)

大气污染来自汽车尾气

According to the latest research, vehicles, coal-burning, airborne dust and industrial production account for 85 to 90-percent of the major airborne pollution sources in most Chinese cities. Vehicles are the biggest polluters in Beijing, Hangzhou, Gu

发表于:2019-02-03 / 阅读(42) / 评论(0)

英语新闻

VOA慢速英语2012 IN THE NEWS - Scientists May Have Found 'God Particle'

IN THE NEWS - Scientists May Have Found 'God Particle' 新闻报道 - 科学家们可能发现了上帝粒子 This is IN THE NEWS in VOA Special English. 这里是美国之音慢速英语新闻报道。 This week, scientists in Switzerland reported a

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2012年VOA慢速英语(七)月

与空气污染有关的托福词汇

雾霾 haze; 烟雾 smog; 空气污染指数 air pollution index; 橙色预警 orange alert; 悬浮颗粒物 airborne particulate matter; 可吸入颗粒物 inhalable particle; 有毒物质 toxic substance; 空气质量检测 air quality monitoring; 实

发表于:2019-02-26 / 阅读(67) / 评论(0)

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bernstein approximation theorem

black salves

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