bed plate foundation

例句：

1. 1.The old house has a worn-out bed plate foundation.
   这所老房子的床板地基已经磨损不堪了。
2. 2.The engineer carefully examined the foundation of the building before starting work.
   工程师在开始工作前仔细检查了建筑物的基础。
3. 3. The foundation of the new bridge is stronger than the old one.
   这座新桥的基础比旧桥更坚固。