求翻译：目前，玻化砖的致密度已经达到甚至超过天然石材的标准，对于肌理的表现虽然取得了长足的进步，但相比天然石材的表现力而言仍有一定距离。是什么意思？

At present, the density of tiles already meet or exceed standards for natural stone, for textures performed although considerable progress had been made, but compared to the expressive power of natural stone, is still a certain distance.