permanent bipolar magnet
英
美
- 双极永久磁铁
双语例句
- A permanent magnet assists closing and latches the breaker in the closed position.
一个永久磁铁帮助跳开关闭合并锁定在闭合位。 - Other objects become magnetic only when in a magnetic field caused by a permanent magnet or an electromagnet.
其它物体只有在处于永久磁铁或电磁铁形成的磁场中时才具有磁性。
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