确保用螺栓把框架牢牢地固定在地面上。Ensure that the frame is securely fixed to the ground with bolts.盒子用螺栓旋紧了.The box was bolted down.螺栓的孔眼完全合适.The holes for the bolts register perfectly....

“螺栓”的拼音为：luó shuān...

“螺栓”的英语可以翻译为：olt，screw bolt，threaded bolt ...