The field may be provided by permanent magnets or by electromagnets.外地可能提供的永磁材料,或由电磁铁.Other electromagnets would push and pull the train along the track.其他的电磁铁会在轨道上拉或者推火车.Electromagnets would be used to dissipate the ene...
Other electromagnets would push and pull the train along the track.其他的电磁铁会在轨道上拉或者推火车.The field may be provided by permanent magnets or by electromagnets.外地可能提供的永磁材料,或由电磁铁.Electromagnets would be used to dissipate the ene...
He indicated the bedroom with a jerk of his head.他扭头指了指卧室的方向。He felt his head jerk reflexively.他感到他的头反射性地动了一下。Don't jerk me around, Mr Crook.别耍我，克鲁克先生。...