其跨度较大，型钢骨架结构复杂，钢支撑及牛腿种类繁多，加工制作难度大。

Due to its large span, complicated construction of the profiled steel frame and various types of steel supports and corbels, the fabrication is a hard job.

youdao

其跨度较大，型钢骨架结构复杂，钢支撑及牛腿种类繁多，加工制作难度大。

Due to its large span, complicated construction of the profiled steel frame and various types of steel supports and corbels, the fabrication is a hard job.

youdao