arched girder

• 拱梁,拱形主梁,拱形梁,拱形大梁

arched girder的用法和样例：

例句

1. The girder was clinched into the wall.
   大梁被钉牢在墙中。
2. I saw with my own eyes a girder fall and crush him to death.
   我眼瞅着一根大梁掉下来把他砸死了。