短语词组短語bolt head cap wrinkle 帽頭皺折Bolt cap nuts 螺帽wheel bolt cap 車輪螺栓帽bolt hold down cap 螺栓壓緊式泡罩cap bolt 蓋螺栓;有帽螺栓;有頭螺栓;緊固螺栓rod cap bolt 連杆蓋螺栓guide cap bolt 導曏蓋螺栓axle cap bolt 軸罩螺栓connecting rod cap bolt 連杆蓋螺栓 返回 bolt cap