Analyzed press technology characteristics of vent - windows of the car side board, designed a lancing - drawing compound die.分析了车厢侧板零件通风窗冲压加工的工艺特点, 设计了一副针对该零件加工的切口拉伸复合模....

lancing的音标：lancing的英式发音音标为：['lɑ:nsɪŋ]lancing的美式发音音标为：['lɑnsɪŋ]...

n.切缝，气切割v.用柳叶刀切开( lance的现在分词 )...