The Technic for Manufacturing Large Diameter Tubes with Flexible Joint and Steel Socket by Vibrating the Vertical Internal-mould and Rolling the Tube-end是什么意思_The Technic for Manufacturing Large Diameter Tubes with Flexible Joint and Steel Socket by Vibrating the Vertical Internal-mould and Rolling the Tube-end在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句