stanchion

剑桥词典

a fixed vertical bar or pole used as a support for something
（用於支撐的）支柱，杆
If this stanchion is removed , the stairs will collapse . 如果把這根支撐柱拿走，樓梯會塌下的。
His 18-yard shot hit the stanchion (= goalpost ) and went back into play . 他在離球門18碼遠処一腳射門，球撞到門柱後又彈廻了場地。 返回 stanchion