The controlling system part contains the circuit of step-by-step electromotor control and the circuit of pulse electrical source.
控制系统部分包括步进电机控制电路和脉冲电源电路，这是数控电火花加工机床的重点设计部分，也是难点。
Its major characteristic is suitable for polyphase walking electromotor and can work in full or half step.
它的主要特点是适用于多种相数的步进电机，可在整步或半步方式下工作。
Its major characteristic is suitable for polyphase walking electromotor and can work in full or half step.
它的主要特点是适用于多种相数的步进电机，可在整步或半步方式下工作。
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