cone-shape sill pillar

例句：

1. 1. The construction of the new bridge required the installation of cone-shaped sill pillars to support its weight.
   建造新桥需要安装圆锥形底柱来支撑其重量。
2. 2.The engineer designed the structure with a cone-shaped sill pillar that would resist earthquakes.
   工程师设计了结构，使用了圆锥形底柱以抵抗地震。
3. 3. The pillars were made from reinforced concrete and were placed at regular intervals to ensure stability during construction.
   这些柱子是用钢筋混凝土制成的，并按照一定的间隔放置，以确保施工期间的稳定性。