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。
1·The application of laser light scattering to detect welding fume is theoretically analyzed in this paper as well as the corresponding detecting means is presented.
对应用激光散射方法检测焊接烟尘进行了理论分析，并给出了相应的检测手段。
2·This paper introduces briefly the career dangers in welding, such as burning, noise, electric shocks, fume and gases, which will damage the health of welders.
简要介绍了焊接操作中存在的多种职业危害，如灼伤、噪声、电击、烟尘和废气、辐射等，严重损害工人的身体健康。
3·The technology makes it feasible that nickel-chromium ferroalloys can be produced with the stainless steel fume in medium frequency induction furnace.
中频感应炉将不锈钢生产中产生的烟尘冶炼镍铬铁，技术上可行，社会效果和经济效益显著。
4·The form of manganese existing in the fume is determined by analysis.
通过分析确定了烟尘中锰的存在形式。
5·Conclusion weld fume concentration is effectively controlled during taking comprehensive improvement measures in the welding workplace producing container.
结论在综合治理措施的实施下，集装箱焊接车间的焊接烟尘浓度得到有效控制。