disk nut

例句：

1. 1. The technician had to replace the disk nut on the printer.
   技术人员不得不更换打印机上的磁盘螺母。
2. 2.The engineer carefully removed the disk nut from the gearbox.
   工程师小心翼翼地从齿轮箱中取出磁盘螺母。
3. 3. The mechanic replaced the disk nut with a new one to fix the issue.
   机械师用一个新的来替换磁盘螺母以解决问题。