The special bobbin core support device is made of reinforced nylon.The device has different angles for installing bobbin core. ( including the transition collar and cheese ).是什么意思_The special bobbin core support device is made of reinforced nylon.The device has different angles for installing bobbin core. ( including the transition collar and cheese ).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句