1.The white afrodite erosion creates the reducing of glass hardness and density,AZS corrosion creates hardness to descend,but the density to raise.
门)白侵蚀后造成玻璃和密的,钻刚玉侵蚀后造成,但是密却有所上升。
2.3. (7) The white afrodite erosion creates the reducing of glass hardness and density,AZS corrosion creates hardness to descend,but the density to raise.