1·The process adopts low temperature pressing process to produce chocolate-like pitch, by which the pitch fume pollution problem has been thoroughly solved.
该工艺采用水下低温成型，生产出类似巧克力形状的沥青，彻底解决了沥青烟污染的问题。
2·The practical design scheme of graphitization exhaust fume system was put forward according to present situation. The chimney neck firing and automatical control were described.
根据现有情况，对石墨化排烟系统提出了切合实的设计方案，并对烟道着火及自动控制作了介绍。
3·Diverse lines of portable and stationary downdraft tables and control booths of varying sizes for fume, mist and dust collection provide highly efficient collection and filtration.
便携式和固定式吸式表和控制展台尺寸多样化，对烟、雾和灰尘进行高效率的收集和过滤。
4·The fineness of coal powder from the pulverizing system and the coal variety effective on the fume discharge temperature of boiler have been analysed in the paper.
分析了制粉系统煤粉细度和煤种及运行方式对锅炉排烟温度的影响，并且提出了一些措施，供参考。
5·Objective To study and work out hygienic standard of petroleum asphalt fume in the air of workplace.
目的研究制订车间空气中石油沥青(烟)卫生标准。