Experimental study on influence of cyclic freeze-thaw on tensile strength of bonding interface between fresh and old concrete mixed with air-entraining agent是什么意思_Experimental study on influence of cyclic freeze-thaw on tensile strength of bonding interface between fresh and old concrete mixed with air-entraining agent在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句