parallel hedra

例句：

1. 1. The construction of the new bridge required the installation of parallel pillars to support its weight.
   建造新桥需要安装平行支柱来支撑其重量。
2. 2.The architect designed a series of parallel pillars that would enhance the architectural beauty of the building.
   建筑师设计了一系列平行支柱，以增强建筑物的美学价值。
3. 3. The pillars were made from durable materials to withstand the harsh weather conditions in the area.
   这些支柱由耐用的材料制成，以承受该地区恶劣的天气条件。