fork expander bolt

例句：

1. 1.The fork expander bolts are used to adjust the height of the table.
   叉子扩展器螺栓用于调整桌子的高度。
2. 2. The engineer used the fork expander bolts to fix the roof of the house.
   工程师使用叉子扩展器螺栓来固定房子的屋顶。
3. 3. The fork expander bolts were designed to make it easier to move heavy objects.
   叉子扩展器螺栓的设计是为了更容易地移动重物。