刀具磨损未及时发现
the tool wear has not been checked out in time
改正工艺
correct technics
加强检验
reinforce checkout
螺纹超差
thread oversize
工艺指导错误
there's someting wrong with the technical guidance
The cutter was worn and torn and has not found timely /Strengthen examining
The whorl exceeds extremely difference, the craft guides had mistakes / correct the craft, strengthen examining
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