要创高效益　请来找“先行”──访国产变频调速器第一发明单位铁道部电气化局北京先行应用技术公司总经理马志刚１９８８年６月，东北工学院１１位教授联名致函李鹏总理，呼吁大力开发交流电动机变频调速器。李鹏同志将此信交中央电视台新闻联播播出后，在全国引起极大反... To create high efficiency, please come to the “first move” - ​​Interview with the first invention unit of domestic frequency control governor Electrification Bureau of the Ministry of Railways Beijing advance application technology company general manager Ma Zhigang In 1988 June, 11 professors of the Northeast Institute of Technology jointly wrote a letter to Premier Li Peng , Call for vigorous development of AC motor frequency converter. Comrade Li Peng sent this letter to the CCTV news broadcast;