long beam cutting machine

例句：

1. 1. This long beam cutting machine isvery efficient in cutting large timbers.
   这台长梁切割机在切割大木材时非常高效。
2. 2. The engineer used the longbeam cutting machine to cut the wooden beams for the construction project.
   工程师使用长梁切割机为建筑项目切割木梁。
3. 3.The long beam cutting machine was used tolevel the ground before the construction began.
   长梁切割机被用来平整土地，以便开始建设。