N the device holding the dies used to cut an external screw thread 螺纹板牙扳手
Though the root thereof wax old in the earth, and the stock thereof die in the ground;
其根虽然衰老在地里，干也死在土中。
FLASH : Green roller defect, caused by excessive stock forced out between taper die and head die.
毛刺：过多余量从锥模和顶模中挤出后引起的软滚子缺陷。
The influences of man-machine combination on the design of CAD system, the man-machine interaction in the die, the punch and the stock stop design modules of HPC system are discussed.
本文分析了人机结合对CAD系统设计的影响，论述了HPC系统凹模、凸模和挡料装置设计模块中的人机交互作用。
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