water immersed soil density

例句：

1. 1. The soil was so dense that it was difficult to dig a hole.
   土壤非常密实，难以挖洞。
2. 2. The engineer used the water-infiltrated soil density to design the foundation of the building.
   工程师利用水浸土密度设计了建筑的基础。
3. 3. The soil density affects the strength and durability of the building's foundation.
   土壤密度影响建筑物基础的强度和耐久性。