large-size floor joist

例句：

1. 1.The large-size floor joist is a crucial part of the construction process.
   大型尺寸的地板梁是建筑过程的关键部分。
2. 2.The engineer carefully measured the size of the large-size floor joist before installing it.
   工程师在安装之前仔细测量了大型尺寸的地板梁的大小。
3. 3. The large-size floor joist was installed in the center of the room to support the weight of the furniture.
   大型尺寸的地板梁被安装在房间的中心以支撑家具的重量。