claw beam

例句：

1. 1. The engineer used a claw beam to reinforce the wall.
   工程师用一个钳子梁加固了墙壁。
2. 2.The construction workers used claw beams to support the roof.
   建筑工人使用钳子梁支撑屋顶。
3. 3.The beam was made of wood and had sharp claws for grabbing onto objects.
   这个梁是用木头制成的，有锋利的爪子用来抓住物体。