;
;The chimney is almost choked up with soot.
囱几乎被垢堵住了。
，灰熏黑；以煤
灰吹除
炱的形成；积灰The chimney is almost choked up with soot.
囱几乎被垢堵住了。
The inside of a chimney soon gets covered in soot.
囱里面很快就覆盖了一层煤。
Soot is the product of the imperfect combustion of fuel.
煤是燃料不完全燃烧的产物。
In tunnels, a lashing backwind fills the cab with soot.
过隧道时，反向风把煤灰灌进
。
Soot is usually the product of the imperfect combustion of fuel.
煤通常是燃料不完全燃烧的产物。
It is brought forward a technique craftwork of dust remove of acetylith soot by analysis of acetylith soot . It takes a good effect .
本文对电石尘的特征进行分析,提出了电石炉气除尘的工艺方案,经实践取得较好的效果。
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