时冲老师，毕业于中南大学外国语学院，研究生学历，教育硕士。

Shi Chong, graduated from foreign language department of Central south University with the Education degree.

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冲头推压装于模具中的工件。

The punch pushes against the workpiece, which is held in the die.

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冲头推压装于模具中的工件。

The punch pushes against the workpiece, which is held in the die.

youdao