The model AVL 657 data collecting andlysing system made by AVL co. in Austriais a measuring and testing device for rapidly collecting,processing and memorizing data in transient processes of an internal combustion engine.

• 奥地利AVL公司生产的AVL657数据采集分析系统，是一套对内燃机瞬变过程进行高速数据采集、处理和存储的测试设备。