double stage voltage regulator
... 双金属传感器：BS Bimetal Sensor 双节电磁振动式调节器：double stage voltage regulator 双铰接式摆动轴：double joint swig axle ...
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single stage voltage regulator
...omagnetic regulator (vibrating type regulator) 单级电磁振动式继电器 single stage voltage regulator 双节电磁振动式调节器 double stage voltage regulator 调节电阻 ..
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