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由于在国民经济各个领域中永久磁铁的品种和应用范围不断增多和扩大,所以必须改进其生产工艺,首先在自动化设备的基础
Due to the ever-increasing variety and application of permanent magnets in all fields of the national economy, the production process must be improved. First of all, based on the basis of automation equipment