下午电机，反之，从外地获得高能永磁材料，这样就没有权力要求，以建立电机领域和更大的权力可用于扭矩一代。
PM motors, conversely, derive the field from high energy permanent magnets, so that no power is required to build the motor field and more power can be devoted to torque generation.
永磁材料为第四代超强水磁——钕铁硼永磁。
The permanent materials are of the reinforced permanent magnet of the fourth generation Nd- Fe-B.
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