black smoke ; dark smoke
From the producing mechanism of black smoke, this paper puts forward that smoke removal is primary in the treatment.
论文从产生黑烟的机理出发，提出了燃煤陶瓷窑炉烟尘治理应以消烟为主。
·2,447,543篇论文数据，部分数据来源于NoteExpress
一团黑烟拂过了这座城市。
A cloud of black smoke blew over the city.
《柯林斯英汉双解大词典》
排气管里冒出黑烟。
The exhaust streamed black smoke.
《牛津词典》
Black smoke streamed from the exhaust.
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