Application of this diagram to the BOF process may help in the selection of the amount and time of dolomite addition as well as in the petrographical examination of BOF slags.

应用这个相图，可以在氧气顶吹转炉炼钢生产中，对白云石的加入量和加入时间以及炉渣的岩相检验具有重要的参考意义。

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The structure of unconsumed pulverized coal is different from that of coke according to petrographical microanalysis.

通过岩相显微分析确定了炉尘中未消耗煤粉和焦炭存在的不同结构形态。

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The tectonically deformed coal with special petrographical features and compli- cared origin developed in South China.

我国南方构造煤发育，具有特殊的煤岩特征和复杂的成因。

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