Unreasonable distribution of industrial sources,coal as principle energy consumption and its great consumption strength made soot-type air pollution more serious.
太原市不合理的工业污染源分布及以煤为主的能源消费结构和能耗强度大使得以煤烟型污染为特征的大气污染严重。
参考来源 - 太原市大气环境污染动态研究In addition,the conditions to realize premixed compression combustion process were developed atthe different conditions with calculation code. Many experiment results showed that the soot and NOx is very little at the lowand medium load in the diesel engine.
大量试验研究发现:柴油机在中小负荷时,碳烟和NOx排放极低。
参考来源 - 预混合压燃发动机混合气形成与燃烧过程研究·2,447,543篇论文数据，部分数据来源于NoteExpress
同义词： carbon black lampblack smut crock
以上来源于: WordNet
N-UNCOUNT Soot is black powder which rises in the smoke from a fire and collects usually on the inside of chimneys. 煤烟灰
...a wall blackened by soot.
…一堵被煤烟灰熏黑了的墙。
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