并采用组合的模具结构和局部加载方法等，成功地锻制出上机匣锻件。
The Combined die structure and local loading method were adopted. The upper housing was forged successfully by isothermal precision forging.
并采用组合的模具结构和局部加载方法等，成功地锻制出上机匣锻件。
The Combined die structure and local loading method were adopted. The upper housing was forged successfully by isothermal precision forging.
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