sooting

The Era of Procrastination, of Half-Measures, of Sooting and Baffing Expedients, of Delays, is Coming to its Close.

继续拖延、折衷、和自我安慰式权宜之计时代已经声，却而代之。

The results show that the surface blacks are caused by oil incomplete combustion during heating process in oil-furnace which results in aggregated sooting on the surface of steel parts;

结果明,海面产生黑斑是在油炉加热过程中,加热油燃烧不充分所形成炭黑滴落聚结在钢面所致;