hoopn.箍；铁环；裙撑；呼呼声v.加箍于；包围；发呼呼声hoop stamping die钢皮冲模hooping mechanism套箍机理hoopstick orifice车辆罩棚轻型钩件hoop rolling mill带钢轧机hoop-drop relay落弓式继电器hoop linked chain连环链hoop reinforcement环箍钢筋,箍筋hoop retaining keys箍锁, 带锁扣箍圈hoop radiation beam箍圈辐射梁hoop-linked chain连环链