它们是：１．由上海交通大学完成的轿车活塞关键制造工艺设备研究项目（据测算，他们研制的活塞生产线每条至少可节约技改投资４０００万元人民币。我国至少约需２０～３０条这样的生产线，可节约资金 １０多亿元）； ２．由机械科学研究院、上海材料所等研究的机械工业共性技 They are: 1. Completed by Shanghai Jiao Tong University car piston key manufacturing process equipment research project (it is estimated that they developed the piston production line each can save at least 40 million yuan investment in technological transformation.China at least about 20 to 30 such production lines, saving More than 10 billion yuan of funds); 2. Mechanical Machinery Research Institute of Machinery, Shanghai Materials Research Institute of Machinery Industry common skills