In regard to the main bridge, the prestress concrete continuous beam bridge, the internal force and the disposition of pre-tress steel are studied in brief.是什么意思_In regard to the main bridge, the prestress concrete continuous beam bridge, the internal force and the disposition of pre-tress steel are studied in brief.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句