...永磁机构；绝缘材质 [gap=352]Keywords：vacuum circuit breaker;integrated type;separated type;contactor;permanent magnet device;dielectric material ...
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This paper describes the magnetic field structure of the contactors in arc-extinguishing chamber, permanent magnet device and the types of vacuum circuit breaker.
阐述了真空断路器的灭弧室触头磁场的结构、永磁机构及种类，详述了真空开关的常见问题与选型注意事项。
The magnetic mechanism and the driving device composed of the overlapped permanent magnet not only can be used for transferring the linear reciprocating motion but also the rotary motion.
用这种重叠式永久磁铁所构成的磁力机构和传动装置，既可以用来传递直线往复运动，也可以用来传递旋转运动。
The utility model relates to a magnetic force mechanism and a driving device using an overlapped permanent magnet.
本实用新型涉及使用重叠式永久磁铁的磁力机构和驱动装置。
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