dragging-beam

例句：

1. 1. The engineer used a dragging beam to lift the heavy load.
   工程师使用拖曳梁来提升沉重的负载。
2. 2. Theconstruction crew was using a dragging beamto move the large piece of machinery.
   施工队正在使用拖曳梁移动大型机械。
3. 3.The tractor was equipped with a dragging beam for easy transportation of heavy loads.
   拖拉机配备了拖曳梁，便于运输重物。