1、
Springback is a kind of common phenomenon that is hard to solve in the stamping.
回弹是板料冲压成形过程中一种常见但很难解决的现象.
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2、
3、
4、
Today we face a serious phenomenon which is the non-registered cars join in transport.
目前,“黑车参运”现象较为严重,道路运输管理部门应加大打击力度.
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