Making an Investigation in the Technological Method of the Medium-frequency Induction Braze Welding of the Rotor Copper Bar and End-ring for the AC and DC Motor是什么意思_Making an Investigation in the Technological Method of the Medium-frequency Induction Braze Welding of the Rotor Copper Bar and End-ring for the AC and DC Motor在线翻译_英语_读音_用法_例句