fixed-head disk

例句：

1. 1. The computer uses a fixed-head disk to store data.
   这台电脑使用固定头磁盘来存储数据。
2. 2.The engineer designed the fixed-head disk with high efficiency.
   工程师设计了这种高效能的固定头磁盘。
3. 3. The new model of the fixed-head disk has been launched.
   新款的固定头磁盘已经推出。