The importance of the research on bending rigidity of unstiffened CHS T-joints with fold chord and the present research achievements at home and abroad are introduced.是什么意思_The importance of the research on bending rigidity of unstiffened CHS T-joints with fold chord and the present research achievements at home and abroad are introduced.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句