试题与答案

单面操作要求转炉能有()的旋转角度;双面操作要求转炉能有正反旋转()。

题型:填空题

题目:

单面操作要求转炉能有()的旋转角度;双面操作要求转炉能有正反旋转()。

答案:

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参考答案:A

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