本文设计的是汽车发动机罩外板冲压模具第一工程所使用的拉延模。
This is the engine cover design, board stamping dies used in pulling one engineering service modules.
我的汽车发动机罩撞飞了一个上了年纪的绅士时，我见他行动迟缓、满脸沮丧。
I saw the slow-moving, sad-faced old gentleman as he bounced off the hood of my car.
汽车发动机罩冲压成形后翻边工艺机械自动化一直是困扰汽车制造商的技术难题。
The mechanical automation of bending technique is the troublesome problem to car's manufacturer.
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