发动机工作原理的两个问题1.why you need copper brushes instead of fixed terminal?2.why multiple coils help?3.why uses coils of wire?

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发动机工作原理的两个问题1.why you need copper brushes instead of fixed terminal?2.why multiple coils help?3.why uses coils of wire?

发动机工作原理的两个问题1.why you need copper brushes instead of fixed terminal?2.why multiple coils help?3.why uses coils of wire?
发动机工作原理的两个问题
1.why you need copper brushes instead of fixed terminal?
2.why multiple coils help?
3.why uses coils of wire?

发动机工作原理的两个问题1.why you need copper brushes instead of fixed terminal?2.why multiple coils help?3.why uses coils of wire?
你说的不是发动机!是直流电机!
1)没铜刷送不出电!这不是交流电机!
2)一个线圈是教学品!实用机多个线圈是磁场分布的需要!
3)没线圈那来的电磁感应?

你为什么需要铜刷而不是集中终端? 为什么要多样的..........是这个意思吗?

竟然玩英文?