headstock center collet

例句：

1. 1. The machine tool's headstock is made of high-carbon steel for durability.
   这台机床的头轴是用高碳钢制成的，以增加耐用性。
2. 2. The center collet is designed to securely hold the workpiece in place during machining.
   中心销的设计是为了在加工过程中牢固地固定工件。
3. 3. The engineer carefully adjusted the center collet to ensure a precise fit with the cutting tool.
   工程师仔细调整了中心销，以确保与切削工具的精确配合。