progressiveadj.先进的；前进的；渐进的；革新的(音乐上的）n.进步分子；革新主义者progressive rise陆续上升progressive mesh渐进网格progressive wage累进工资progressive form进行时形式progressive step前进步progressive mean累加平均progressive drier逐步干燥器progressive aging渐进时效,分级时效progressive meshs渐进网格progressive gauge分级规

1. In order to control springback in precise progressive dies,an effective method is to apply coining on inboard rounds.
   在内圆角处施加压印是广泛应用在精密级进模中控制回弹的一种有效方法。