Cement of silicate of volcanic grey matter: Mix mill in proportion by material of silicate cement grog and volcanic grey matter and gesso and become.是什么意思_Cement of silicate of volcanic grey matter: Mix mill in proportion by material of silicate cement grog and volcanic grey matter and gesso and become.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句