lubricating oil wedge

例句：

1. 1.The wedge is used to keep the bolt in place during assembly.
   楔子用于在组装过程中保持螺栓到位。
2. 2. The wedge was inserted between the two pieces of wood to prevent them from moving apart.
   楔子被插入两块木头之间，以防止它们分开。
3. 3.The wedge was used as a tool to remove the screw from the wall.
   楔子作为工具被用来从墙上移除螺丝。