screw jaw with movable lug

例句：

1. 1.The screw jaw with movable lug is a crucial part of the machine's mechanism.
   这个带有可移动凸块的固定颚是机器机制中的关键部分。
2. 2.The engineer designed the screw jaw with movable lug to ensure smooth operation.
   工程师设计了这个带有可移动凸块的固定颚，以确保操作顺畅。
3. 3. The screw jaw with movable lug was used in the construction of the bridge, providing stability and strength.
   带有可移动凸块的固定颚被用于桥梁的建设中，提供了稳定性和强度。