Therefore, external desulfurization technology is needed for the hot metal.
因此，钒钛铁水应该采用炉外脱硫工艺。
The desulfurization technology has become a key technology in various oil refinery enterprises.
脱硫技术已经成为各炼油企业的关键技术。
There is great difficulty in the desulfurization technology for wet phosphoric acid purification.
湿法磷酸净化脱硫技术难度大。
There is great difficulty in the desulfurization technology for wet phosphoric acid purification.
湿法磷酸净化脱硫技术难度大。
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