rectangular magnetic chuck

例句：

1. 1.The engineer used a rectangular magnetic chuck to hold the bolt in place.
   工程师用一个矩形磁性夹具来固定螺栓。
2. 2. The machine tool requires a rectangular magnetic chuck to hold the workpiece securely.
   这台机床需要使用矩形磁性夹具来稳固地夹持工件。
3. 3. The technician carefully adjusted the rectangular magnetic chuck to ensure proper alignment.
   技术员仔细调整矩形磁性夹具，确保正确对齐。