bascule bridge是什么意思

网络释义

1)bascule bridge,上开桥,竖旋桥2)leaf of bascule bridge,竖旋桥桥翼3)counterpoise bridge,竖旋吊桥4)weigh bridge,竖旋桥5)bascule bridge,竖旋桥活动桥6)double-leaf bascule,双翼竖旋桥