Because the confinement effect of the square steel tube was involved in the stress-strain relationship of the core concrete,this method could allow for the interaction between the steel tube and the concrete.是什么意思_Because the confinement effect of the square steel tube was involved in the stress-strain relationship of the core concrete,this method could allow for the interaction between the steel tube and the concrete.在线翻译_英语_读音_用法_例句