geared-head lathe

例句：

1. 1.The geared-head lathe is used for precision machining of small parts.
   齿轮头车床用于精密加工小零件。
2. 2. The geared-head lathe was the first machine to automate the process of turning metal.
   齿轮头车床是第一台实现金属加工自动化的机器。
3. 3.The geared-head lathe has become a crucial tool in modern manufacturing processes.
   齿轮头车床已成为现代制造过程中不可或缺的工具。