短语词组短语BAR -TACK CK 打枣Unsecured bar -tack 套结不稳或松弛Missing bar -tack 漏打枣Misplaced bar -tack 套结位置不对Incorrect bar -tack width 套结阔度不对Bar -tack not of specified length 套结长度不对 返回 bar-tack