According to the design theory of composite pile foundation,the simplified design method of composite pile foundation with sleeper is presented based on the engineering practice in Nanjing.是什么意思_According to the design theory of composite pile foundation,the simplified design method of composite pile foundation with sleeper is presented based on the engineering practice in Nanjing.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句