镦粗时间
Upsetting time
以上为机器翻译结果，长、整句建议使用 人工翻译 。
如果缺少系统的局部镦粗规则的指导，则会造成大量的试模时间和材料的浪费。
In the absence of systematic upsetting instructions, we would waste quite a few materials as well as a great deal of time for model experimenting.
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应用推荐
模块上移
模块下移
不移动