Study on Microstructure Residual Stress and Performance of Starlike Inner Race Produced by Cold Closed Die Forging
闭塞冷锻星形套的组织，残余应力及性能研究

Study on the Similar Forming of the Square Metal Profile by Fine Extrusion and on the Mapping Optimization for the Die
精密挤压金属文型材相似成形与模具映射优化研究

The lengthvariable flower groove is characterized in that flower grooves with different lengths can be molded by one die.
其特征是一副模具可以注塑出不同长度的花槽。

Thirteen dogs and two cats were captured and were put to die,then their postmortem brain tissues were obtained and treated by formalin.
先将这些动物处死 获取其脑组织 用福尔马林固定。

The dynamic stress concentration problems at the swallowtail on a hammer forging die are investigated by using the dynamic photoelastie method.
用动态光弹性法研究了锤锻模燕尾的动态应力集中问题。