dc speed regulating device
dc speed regulating device
直流调速装置
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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According to the adjusting principle of current bi-colsed, PLC and 6ra70 digital DC speed regulating device is adopted, which controls over the system of the rolling mill.
根据电流双闭环调速原理，采用6ra70直流全数字调速装置与P LC结合，控制材轧机电系统。
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