揭示了使用复动闭式模锻模具成形小锥角螺旋伞齿轮的可行性.Above result revealed that multidirectional closed die forging of spiral bevel gear was feasible....

“小锥”的英语可以翻译为：conelet，bradawl ...

“小锥体”的英语可以翻译为：occa ...