beam-and-slab floor

例句：

1. 1.The engineer designed a beam-and-slab floor for the new office building.
   工程师为新办公楼设计了一个梁和板式地板。
2. 2.The beam-and-slab floor is durable and easy to maintain.
   梁和板式地板耐用且易于维护。
3. 3.The beam-and-slab floor is an excellent choice for commercial spaces.
   梁和板式地板是商业空间的绝佳选择。