positioner

例句：

1. 3.
   在计算机领域
2. 1. The engineer used a positioner to align the parts accurately.
   工程师使用定位器准确地对齐了部件。
3. 2. The positioner helped the robot navigate through the cluttered room.
   定位器帮助机器人在杂乱的房间中导航。
4. 3. The positioner was essential for the successful completion of the project.
   定位器对于项目的顺利完成至关重要。