烟线是一个汉语词语，读音是yān xiàn，是指烟缕。
假想你坐在云端，脚下的国界线不再清晰，下届的石头墙隔成的屋瓴也化作了烟线……可惜你没坐在云端。
Should you sit upon a cloud you would not see the boundary line between one country and another, nor the boundary stone between a farm and a farm.
洛根看见香烟冒出的烟向上飘去成了一条线。
Logan watched the smoke from his cigarette going up in a line.
阐述了聚丙烯烟用丝束线密度不匀率对过滤嘴质量的影响，分析了影响丝束线密度不匀率的因素。
The influence of linear density uneveness of PP tow for cigarette on the filter tip quality was described. The influential factors upon linear density uneveness were analyzed.
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