短語詞組短語gate footstep pier 閘門墩regulation gate the pier 節(jié)制閘閘墩gate posture pier 門架式橋墩flat gate pier 平尾墩overflow gate pier 溢流表孔閘墩sluice gate pier 泄水閘墩concrete gate pier 混凝土閘墩Electronic gate pier 碼頭的電子閘口trash rack gate pier 攔污柵閘墩 返回 gate pier