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- A significant secular increase has occurred in particulate pollution over the North Atlantic. 在北大西洋上粒子的污染明显地逐年增加。
- Simply put, as HEPA filters activated carbon filtration lead to larger particles of particulate pollution from fibre category with pre-filtering. 简单地说，活性碳滤网可作为HEPA的前置过滤，把较大颗粒的污染微粒物与纤维类预先过滤掉。
- These cities hae achieed major reductions in key emissions but still face the challenge of addressing moderate fine particulate pollution resulting from ehicles fumes. 这些城市已经大大减少了关键污染物的排放，但在寻求由汽车尾气排放出适度的微小颗粒物方面仍面临挑战。
- In March 1991,a scientist with the U.S. Environmental Protection Agency reported that as many as 60,000 people in the United States may die prematurely each year as a result of particulate pollution. 1991年3月，美国环保署的一位科学家指出，由于受微粒的污染，美国每年将会有6万人过早地死亡。
- In March 1991, a scientist with the U.S. Environmental Protection Agency reported that as many as 60, 000 people in the United States may die prematurely each year as a result of particulate pollution. 1991年3月，美国环保署的一位科学家指出，由于受微粒的污染，美国每年将会有6万人过早地死亡。
- There is no famula for calculating survey positio n of particulate pollutant from the exhaust of fixed pollution source in the lat est docum ents . 现有文献尚没有关于固定污染源排气中颗粒物监测点位的计算公式,本文给出了有关的计算方法及计算公式,简单明了、计算方便、准确。
- Each of the preceding classifications of polluted air masses involves primarily particulate pollutants. 上述每类污染空气的物质一形成就含有粒状污染物。
- Characteristics of atmospheric particulate pollution in sping in Nanjing City 南京市大气颗粒物春季污染的特征
- Study on the Characteristic of Source of Atmospheric Particulate pollution 抚顺市大气污染颗粒物来源特征研究
- We should use anthracite to avoid air pollution. 我们应该使用无烟煤以防止空气污染。
- Pollution control has cleared the air. 污染管制已净化了空气。
- Man is fighting a battle against pollution. 人类正在与污染作斗争。
- Pollution is still very much a live issue. 污染现象仍然是当前的大问题。
- The soil becomes more and more acidic as pollution mounts up. 随着污染的加剧，土壤的酸化越来越严重。
- A clamor in the press for pollution control. 在报纸上对污染控制的呼吁
- Water pollution imperils all kinds of marine life. 水质污染危及所有海洋生物。
- Pollution has stripped the trees of their foliage. 污染剥光了这些树的叶子。
- Pulverized particulate matter ejected by volcanic eruption. 火山灰火山爆发喷射出来的粉末状颗粒物质
- We have freed the lake from pollution. 我们已经清除了该湖的污染。
- Study on Particulate Pollution Characteristics of Typical Sources in Iron and Steel Works 钢铁企业典型污染源颗粒物污染特征研究
