石墨化炉用变压器后期输出功率不足，是长期困扰石墨化工序的难题。
A difficulty that the power of the transformer during the later period of graphitization is not enough exists long term.
石墨化炉用变压器后期输出功率不足，是长期困扰石墨化工序的难题。
A difficulty that the power of the transformer during the later period of graphitization is not enough exists long term.
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