tri-slot nut

例句：

1. 1. Theengineer used a tri-slotnut to secure the bolt in place.
   工程师使用一个三槽螺母来固定螺栓。
2. 2. Theconstruction crew had to remove the tri-slot nut before they could startwork.
   施工队在开始工作之前必须拆除三槽螺母。
3. 3. The tri-slotnut is a common component in manymechanical systems.
   三槽螺母是许多机械系统中常见的组件。