gantry column

例句：

1. 1. The construction of the new bridge required the installation of several gantry columns.
   新桥的建设需要安装几根高架支柱。
2. 2.The engineers carefully positioned the gantry columns to ensure stability during the construction process.
   工程师们小心翼翼地定位高架支柱，以确保施工过程中的稳定性。
3. 3. The gantry columns were used to support the weight of the heavy equipment during the demolition work.
   在拆除工作中，高架支柱用于支撑重型设备的重压。