应中国兵工学会发动机学会的邀请,西德内燃机协会主席、MTU公司付总裁丁尔博士来华讲学,于1984年4月20日至5月5日先后到达北京、大同、西安、上海等地,在北京工业学院、山西车用发动机研究所、西安交通大学、上海交通大学和上海船舶内燃机研究所进行了讲学活动。其讲学的内容有两部分: At the invitation of the Chinese Academy of Military Technology Engine Association, Dr. Ding Er, President of the West German Internal Combustion Engine Association and President of MTU paid a lecture in China. He arrived in Beijing, Datong, Xi’an, and Shanghai from April 20 to May 5, 1984. He gave lectures at Beijing Institute of Technology, Shanxi Vehicle Engine Research Institute, Xi’an Jiaotong University, Shanghai Jiaotong University and Shanghai Shipbuilding Engine Research Institute. The content of his lecture has two parts: