The long-term expansion potential due to AAR of alkaline cement system is discussed with measuring the change of AAR expansion ratio of mortar at different age.是什么意思_The long-term expansion potential due to AAR of alkaline cement system is discussed with measuring the change of AAR expansion ratio of mortar at different age.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句