断面收缩断面收缩率
Reduction of area: Reduction rate of area
以上为机器翻译结果，长、整句建议使用 人工翻译 。
当杆的断面收缩率比杯形部分断面收缩率大得较多时，不适合直接用复合挤压成形。
When the shrinkage of the rod fracture surface much more than that of the cup part fracture surface, its formation by compound extrusion is not applicable.
youdao
应用推荐
模块上移
模块下移
不移动