Bolto博尔托
boltn.门闩;螺栓;一卷布;弩箭v.(突然)逃离;闩住;狼吞虎咽;用螺栓固定adv.挺直地
bolt splice bar孔鱼尾板
boltless baffle无螺栓挡板
bolt frame pier锚杆框格梁
bolting support锚杆支护
bolting machinen.杆柱安装机;锚杆安装机;机械筛
bolt steel tank螺栓连接钢罐
Bolt pretension螺栓预紧力
bolt by heading镦粗螺栓
bolthole circle螺栓孔分布圆