Apart from being used in road material as the concrete additive instead of a part of cements, fly ash also is made panel wall and brick as the main material.是什么意思_Apart from being used in road material as the concrete additive instead of a part of cements, fly ash also is made panel wall and brick as the main material.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句