backing roll
短语词组
- backing up roll 支承辊
- bottom backing up roll 下支持辊;下支承辊
- top backing up roll 上支承辊
- backing roll mark 背辊痕
- forged steel backing roll 锻钢支承辊
- cutter backing roll 切纸机支撑辊
- backing -up roll [机]支撑轧辊;托模辊
- cast steel backing roll 铸钢支承辊 返回 backing roll