The new progress about twin—screw extruders and control technology in reaction extrusion line are described. Some applications of viscometer in this processing technology are introduced too.
介绍双螺杆挤出机的最新进展以及反应性挤出生产线控制技术开发动向；详述粘度计在反应性挤出工艺中的应用。
The progress in control technology of carbon, nitrogen, total oxygen, phosphorus, sulphur as well as inclusions in steel is discussed at Baosteel.
重点叙述了宝钢在钢中碳、氮、氧、磷、硫以及夹杂物控制方面的技术进步。
The technology of As retention with calcium-based materials and the research progress of As pollution control in coal combustion are discussed further.
进一步讨论了天然钙基材料燃煤固砷技术及燃煤砷污染控制的研究现状。
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