RC-PIER is an integrated tool for the AASHTO Standard and LRFD analysis and design of reinforced concrete bridge substructures and foundations.是什么意思_RC-PIER is an integrated tool for the AASHTO Standard and LRFD analysis and design of reinforced concrete bridge substructures and foundations.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句