The pretension force of piles under working load can be deduced from the combination of the tension force induced by excavation and the tension force induced by working load.是什么意思_The pretension force of piles under working load can be deduced from the combination of the tension force induced by excavation and the tension force induced by working load.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句