This thesis summarizes the problem and developmental direction of SO_2 control technology and its popularization in the world.
本文对国内外二氧化硫排放控制技术研究开发做了综述性论述。
The paper analyzed the coke ratio in recent years, summarized the measures of reducing the coke ratio and brought up the developmental direction to reduce the coke ratio in the coming years.
对近年来涟钢炼铁焦比情况进行了分析，总结了降低焦比采取的措施，提出了今后降低焦比的方向。
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