a building material made by grinding calcined limestone and clay to a fine powder,which can be mixed with water and poured to set as a solid mass or used as an ingredient in making mortar or concrete是什么意思_a building material made by grinding calcined limestone and clay to a fine powder,which can be mixed with water and poured to set as a solid mass or used as an ingredient in making mortar or concrete在线翻译_英语_读音_用法_例句