In order to obtain low silicon iron for steelmaking the reduction process of silicon must be controlled in blast furnace.
为了获得低硅炼钢生铁，必须控制高炉内硅的还原过程。
Hoist of blast-furnace car is controlled by inverter instead of series connection-resistance. It can meet the requirements of the production, easy to handle with high dependability and efficiency.
高炉料车卷扬机，采用变频器调速控制，替代传统的串电阻调速控制模式，实现了生产工艺的要求。
The blast on April 11 was the first deadly bombing in the tightly-controlled ex-Soviet nation of 10 million.
4月11日的爆炸是第一个发生在继前苏联严格控制的10万人口的致命轰炸。
The blast on April 11 was the first deadly bombing in the tightly-controlled ex-Soviet nation of 10 million.
4月11日的爆炸是第一个发生在继前苏联严格控制的10万人口的致命轰炸。
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