There are mainly two hypotheses on it, one is the M hypothesis which assumes that the force lines co-rotate with the magnet, and the other is the N hypothesis which as.
两种主要观点是：M理论认为磁场随着磁体一起转动；N理论认为磁场不随磁体一起转动。
There are mainly two hypotheses on it, one is the M hypothesis which assumes that the force lines co-rotate with the magnet, and the other is the N hypothesis which as.
两种主要观点是：M理论认为磁场随着磁体一起转动；N理论认为磁场不随磁体一起转动。
应用推荐