This method frequently caused the layer-shaped cracks in the center of the forgings, and also wasted a large number of the raw materials and working hours.

这种方法不仅容易在锻件心部产生层状裂纹，而且浪费了大量原材料和加工工时。

youdao

This method frequently caused the layer-shaped cracks in the center of the forgings, and also wasted a large number of the raw materials and working hours.

这种方法不仅容易在锻件心部产生层状裂纹，而且浪费了大量原材料和加工工时。

youdao