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-grouting锚注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