rotary forging

• 回旋锻造

rotary forging的用法和样例：

例句

1. Was the gibbosity near blade the forging blemish?
   靠近刃部的凸起，是否锻造瑕疵？
2. They brought with them knowledge of forging iron into weapons.
   他们带来了锻造铁制武器的知识。