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为便于对JS4型邮政营业自动出售机进行测试,加强维护工作的科学性,我们请江苏省邮政机械厂的顾士元同志,提供了机器电路板各管的静态和动态电位表,供维护人员参考。
To facilitate the JS4 postal automatic vending machines for testing and to strengthen the scientific maintenance work, we asked Mr. Gu Shiyuan from Jiangsu Post Machinery Factory to provide static and dynamic potentiometers for each tube of the circuit board for maintenance personnel’s reference.