短語詞組短語steel cylinder pier detail 鋼琯橋墩steel tube pier 鋼琯橋墩steel cylinder pier 鋼琯橋墩steel bridge pier 鋼橋墩steel zhanqiao pier 鋼棧橋steel tower high pier 鋼塔架高墩box steel pier 箱形鋼橋墩cantilever steel pier 懸臂剛架墩Flexible steel pier 柔性鋼架墩 返回 steel pier