Because the effects of atmospheric carbon take years to show up as higher temperatures, limiting concentration to 450 ppm requires halting emissions at current levels.
因为大气碳含量增加表现在气候变化上要经过几年的时间，把它限制在450ppm的水平上需要我们现在就终止排放。
The paper describe on continuous measurement of the mass concentration of particulate matter emissions from coal fired power boiler.
本文介绍了燃煤电厂锅炉排放颗粒物质量浓度的连续测定。
A laser based technique is proposed which is able to measure and supervise the mass concentration and particle size of smoke and dust in emissions.
提出了能直接测量烟尘和粉尘排放浓度和粒径大小的激光监测技术，具有实时快速、非接触、在线、无需取样和连续测量的优点。
The fuel an conserve energy, reduce the concentration of co, HC of exhaust emissions and the noise emission, so the environmental condition is improved.
验证了该燃料不仅节约能源，而且减少了废气排放中的CO、HC污染物，并降低了噪声。
This paper describes the relationship between the height of pollutant emissions and the maximum ground-level concentration.
叙述了对污染物排放高度和最大落地浓度的关系。
This paper describes the relationship between the height of pollutant emissions and the maximum ground-level concentration.
叙述了对污染物排放高度和最大落地浓度的关系。
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