短语词组短語hoop -iron bond 鉄箍連接spiral hoop -iron 螺鏇鋼箍Polygon forming hoop -iron machine 多邊形箍筋機stra ing machine for hoop -iron 鉄帶打包機hoop iron band 箍鉄皮holt hoop iron method 抱箍法galvanized hoop iron 鍍鋅鉄箍 返回 hoop iron