It is feasible to use oxygen injecting into hearth of cupola and cupola with basic lining in some location.
应用冲天炉炉缸喷氧技术和局部碱性冲天炉是可行的；
Carbon steel boiler, with less gas, generally use the basic open hearth steel i. e. the use of basic lining.
锅炉用碳素钢，夹杂气体较少，一般采用碱性平炉钢即使用碱性炉衬。
Construction of concrete lining at the time of the basic lofting lofting method consistent with the excavation.
混凝土衬砌时的施工放样基本与开挖放样方法一致。
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