According to the rehydration characteristics of dehydrated phases, a kind of new cementious material system can be prepared with gypsum and fly ash.是什么意思_According to the rehydration characteristics of dehydrated phases, a kind of new cementious material system can be prepared with gypsum and fly ash.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句