The speed control problem of a series dc motor is considered.
讨论直流串激电机的速度控制问题。
The use of Brush DC motor could cause the maintenance problem and some EMIproblems.
项目中应用了直流有刷电机，由此带来了碳刷磨损、电磁干扰（EMI）等问题。
The use of Brush DC motor could cause the maintenance problem and some EMIproblems.
项目中应用了直流有刷电机，由此带来了碳刷磨损、电磁干扰（EMI）等问题。
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