triangle nut with collar

例句：

1. 1. The engineer used a special tool to remove the triangular nut with collar.
   工程师使用特殊工具来移除带有套环的三角形螺母。
2. 2. The construction crew had to disassemble the triangular nut with collar before they could install the new parts.
   施工团队在安装新部件之前，必须拆卸带有套环的三角形螺母。
3. 3. The technician carefully removed the triangular nut with collar from the machine's gearbox.
   技术员小心地从机器的齿轮箱中取出带有套环的三角形螺母。