Youxizhou Mingjiang Bridge of Fuzhou is the first open-spandrel rigid-frame arch bridge without vertical columns and oblique supports.是什么意思_Youxizhou Mingjiang Bridge of Fuzhou is the first open-spandrel rigid-frame arch bridge without vertical columns and oblique supports.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句