常见例句The billot action rule in the process of stamping and reeling of a multi-position progressive die was analyzed. 分析了多工位级进模冲压卷圆时的条料动作规律,设计了侧向浮动抽芯装置,并对该抽芯装置的结构进行了介绍。billot 杆 返回 Billote