An electromagnet behaves like a permanent magnet. Large electromagnets are used for lifting heavy iron object.
电磁铁能像磁铁般有吸力，可用于搬勋重的铁。
lifting beam with electromagnets
电磁吸盘横梁
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。
In this way, mechanical movement of the solenoid valve is operated through controlling electric current of the electromagnets.
这样通过控制电磁铁的电流就控制了电磁阀的机械运动。
Electromagnets are very useful in our daily lives.
电磁铁在日常生活中用处非常大。
You can also play with electromagnets, generators and transformers!
你还可以用电磁石, 发电机和变压器!
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 output axis of the electromagnets rightly faces to the pipe sound holes.
这些电磁铁的输出轴正对着箫的音洞。
Levitation Control System Design and Analysis of EMS Hybrid Suspension with Electromagnets and Permanent Magnets P.
型电磁永磁混合悬浮控制问题研究。
The electromagnets would require only an initial power input to start the current in their coils.
这种电磁铁只要馈入一个初始功率就能起动线圈里的电流。
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